Which planet is the best?
user
I’m not sure how you’re defining “best”, but the earth is the only planet in our solar system known to contain life, and so we often call it the “blue marble”.  I can show you some images of it if you’d like?
assistant
Which planet is the best?
user
I’m not sure how you’re defining “best”, but the earth is the only planet in our solar system known to contain life, and so we often call it the “blue marble”.  I can show you some images of it if you’d like?
assistant
Which planet is the best?