Update train_dataset.csv

train_dataset.csv

@@ -1,6 +1,6 @@
-What is a star?,“A star is a massive, luminous sphere of plasma held together by gravity, emitting light and heat from nuclear fusion in their cores. Basically a ball of gas and fire.”
+What is a star?,"A star is a massive, luminous sphere of plasma held together by gravity, emitting light and heat from nuclear fusion in their cores. Basically a ball of gas and fire.
 
-What can I see in the night sky?,“The night sky features stars, planets, and the moon, visible from Earth at night."
+What can I see in the night sky?,"The night sky features stars, planets, and the moon, visible from Earth at night."
 
 What is an asteroid?,“An asteroid is a rocky or metallic object orbiting the Sun, primarily found in the asteroid belt between Mars and Jupiter"