Update train_dataset.csv

train_dataset.csv

@@ -100,7 +100,7 @@ Describe the activity of stargazing.,"Stargazing involves observing celestial ob
 
 What is the purpose of a telescope?,"The purpose of a telescope is to magnify distant objects, crucial for observing stars, planets, and other celestial phenomena."
 
-What is a dwarf planet?,A dwarf planet is a celestial body that orbits the Sun and is spherical in shape but has not cleared its orbital path of other debris."
+What is a dwarf planet?,"A dwarf planet is a celestial body that orbits the Sun and is spherical in shape but has not cleared its orbital path of other debris."
 
 What is a quasar?,"A quasar is an extremely luminous and distant active galactic nucleus, powered by a supermassive black hole at its center."