Update train_dataset.csv

train_dataset.csv

@@ -66,13 +66,13 @@ What is a supernova?,"A supernova is the explosive death of a massive star, resu
 
 Define a neutron star.,"A neutron star is an extremely dense remnant of a massive star that has exploded in a supernova."
 
-What is the Hubble Space Telescope?,“The Hubble Space Telescope is a space telescope launched in 1990, providing detailed images of distant galaxies, nebulae, and stars."
+What is the Hubble Space Telescope?,"The Hubble Space Telescope is a space telescope launched in 1990, providing detailed images of distant galaxies, nebulae, and stars."
 
-What makes the James Webb Space Telescope special?,“The James Webb Space Telescope is a next-generation space telescope designed to observe the universe's earliest galaxies and star formation."
+What makes the James Webb Space Telescope special?,"The James Webb Space Telescope is a next-generation space telescope designed to observe the universe's earliest galaxies and star formation."
 
 What are the Voyager probes?,"The Voyager probes are spacecraft launched in the 1970s to explore the outer planets and now travel beyond our solar system."
 
-Describe the Oort Cloud.,“The Oort Cloud is a distant, spherical shell of icy objects surrounding the solar system, believed to be a source of comets."
+Describe the Oort Cloud.,"The Oort Cloud is a distant, spherical shell of icy objects surrounding the solar system, believed to be a source of comets."
 
 What is space weather?,"Space weather refers to the conditions in space affected by the Sun's activity, impacting satellites and communications."