Anchor: It seemed incredible that Tommy, if all was well with him, should not send any word to her.
Entailed: If Tommy was well, it was hard to believe that he wouldn't reach her.
Contradiction: It didn't seem stranger that Tommy would not attempt to send word to her.
Contradiction: a dog is eating his food
Contradiction: Been has never.
Contradiction: This is  a huge deal that will change everyone's lives for good.
Contradiction: You are fine if no one complains.