diff --git a/2020/burton/Makefile b/2020/burton/Makefile
index 9cb59a525..ccf753142 100644
--- a/2020/burton/Makefile
+++ b/2020/burton/Makefile
@@ -613,4 +613,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/carlini/Makefile b/2020/carlini/Makefile
index 9ee89be1e..df3c8c9d9 100644
--- a/2020/carlini/Makefile
+++ b/2020/carlini/Makefile
@@ -584,4 +584,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/endoh1/Makefile b/2020/endoh1/Makefile
index d5130b594..a61f7caad 100644
--- a/2020/endoh1/Makefile
+++ b/2020/endoh1/Makefile
@@ -585,4 +585,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/endoh2/Makefile b/2020/endoh2/Makefile
index 09ef8081f..cd3a4045a 100644
--- a/2020/endoh2/Makefile
+++ b/2020/endoh2/Makefile
@@ -586,4 +586,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/endoh3/Makefile b/2020/endoh3/Makefile
index 8c619459a..6c4eb8ac0 100644
--- a/2020/endoh3/Makefile
+++ b/2020/endoh3/Makefile
@@ -598,4 +598,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/ferguson1/Makefile b/2020/ferguson1/Makefile
index ea726367e..c20d49d13 100644
--- a/2020/ferguson1/Makefile
+++ b/2020/ferguson1/Makefile
@@ -618,4 +618,4 @@ pluto: supernova
 	echo $@ is a dwarf planet
 	echo dwarf is a type of planet
 	echo therefore, $@ is a planet
-	echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/ferguson2/Makefile b/2020/ferguson2/Makefile
index 125344ae0..ae91cfdd9 100644
--- a/2020/ferguson2/Makefile
+++ b/2020/ferguson2/Makefile
@@ -596,4 +596,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/giles/Makefile b/2020/giles/Makefile
index 2aa69d1ec..be8a9a1b8 100644
--- a/2020/giles/Makefile
+++ b/2020/giles/Makefile
@@ -586,4 +586,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/kurdyukov1/Makefile b/2020/kurdyukov1/Makefile
index 7a3517c2f..0117fbd17 100644
--- a/2020/kurdyukov1/Makefile
+++ b/2020/kurdyukov1/Makefile
@@ -581,4 +581,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/kurdyukov2/Makefile b/2020/kurdyukov2/Makefile
index 1b65b8617..549937925 100644
--- a/2020/kurdyukov2/Makefile
+++ b/2020/kurdyukov2/Makefile
@@ -591,4 +591,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/kurdyukov3/Makefile b/2020/kurdyukov3/Makefile
index 3a3dfd6ab..659bc9e68 100644
--- a/2020/kurdyukov3/Makefile
+++ b/2020/kurdyukov3/Makefile
@@ -581,4 +581,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/kurdyukov4/Makefile b/2020/kurdyukov4/Makefile
index 55b99f64a..f8e37b6f5 100644
--- a/2020/kurdyukov4/Makefile
+++ b/2020/kurdyukov4/Makefile
@@ -583,4 +583,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/otterness/Makefile b/2020/otterness/Makefile
index a5871162a..a3f33a233 100644
--- a/2020/otterness/Makefile
+++ b/2020/otterness/Makefile
@@ -584,4 +584,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/tsoj/Makefile b/2020/tsoj/Makefile
index eb93ea0c1..ff1da962b 100644
--- a/2020/tsoj/Makefile
+++ b/2020/tsoj/Makefile
@@ -588,4 +588,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them
diff --git a/2020/yang/Makefile b/2020/yang/Makefile
index 8dcd0eab9..6e1c7392e 100644
--- a/2020/yang/Makefile
+++ b/2020/yang/Makefile
@@ -583,4 +583,4 @@ pluto: supernova
 	@echo $@ is a dwarf planet
 	@echo dwarf is a type of planet
 	@echo therefore, $@ is a planet
-	@echo having lots of planets is good feature because $< can help ${MAKE} a lot of them
+	@echo having lots of planets is good feature because supernovae can help ${MAKE} a lot of them