Problem: If "When they had eventually calmed down a bit, and had gotten home, Mr. Farley put the magic pebble in an iron safe. Some day they might want to use it , but really for now, what more could they wish for?", does it follow that "Some day they might want to use the magic pebble."?

Answer: yes


Problem: If "Fred and Alice had very warm down coats, but they were not enough for the cold in Alaska.", does it follow that "Fred and Alice were not enough for the cold in Alaska."?

Answer: no


Problem: If "Bob was playing cards with Adam and was way ahead. If Adam hadn't had a sudden run of good luck, he would have won.", does it follow that "Adam would have won."?

Answer: no


Problem: If "If the con artist has succeeded in fooling Sam, he would have lost a lot of money.", does it follow that "Sam would have lost a lot of money."?

Answer:
yes