Question:
Based on the premise "I think I used to live in a twenty-one B.", can we conclude that "I never lived in 21-B, ever."?
****
Answer:
no

Question:
Based on the premise "how about Ghost", can we conclude that "Ghost though?"?
****
Answer:
yes

Question:
Based on the premise "Oh, it's pleasant enough if you want to lead the idle life. ", can we conclude that "The idle life is less exciting."?
****
Answer:
it is not possible to tell