Problem: Sentence: "Billy is so tall."; Another sentence: "John couldn't see the stage with Billy in front of him because he is so tall."?
A: yes

Problem: Sentence: "Dora asked what the sound was."; Another sentence: "Even before they reached town, they could hear a sound like corn popping. Dora asked what it was, and Dad said it was firecrackers."?
A: yes

Problem: Sentence: "The concert continued until 10."; Another sentence: "In the middle of the outdoor concert, the rain started falling, and it continued until 10."?
A:
no