Question:
Based on the premise "You're making a sad mistake but yours will be the loss.", can we conclude that "You're making a sad mistake, and you are the one who will suffer."?
****
Answer:
yes

Question:
Based on the premise "But he is yet a boy.", can we conclude that "But she is yet a girl."?
****
Answer:
no

Question:
Based on the premise "One Nation, After All is full of the very qualities its author imputes to the ordinary virtue, mature patriotism, and quiet faith.", can we conclude that "The author of One Nation, After All believes in ordinary virtue, mature patriotism, and quiet faith."?
****
Answer:
yes