Problem: Sentence: "Billy cried because Toby wouldn't share Toby's toy."; Another sentence: "Billy cried because Toby wouldn't share his toy."?

OPTIONS:
- no
- yes
A: yes

Problem: Sentence: "The fish appeared two years ago."; Another sentence: "The scientists are studying three species of fish that have recently been found living in the Indian Ocean. They appeared two years ago."?

OPTIONS:
- no
- yes
A: yes

Problem: Sentence: "Men had the right to keep their sons working for them until the sons were 21 years of age."; Another sentence: "Men had the right to keep their sons working for them until they were 21 years of age."?

OPTIONS:
- no
- yes
A:
yes