Question:
SA: "The scientists are studying three species of fish that have recently been found living in the Indian Ocean. They appeared two years ago."

SB: "The scientists appeared two years ago."

Is SB true, based on SA?

Answer:
no

Question:
SA: "Tatyana managed two guitars and a bag, and still could point out the Freemans: "Isn't it nice that they have come, Mama!""

SB: "Isn't it nice that the Freemans have come, Mama!""

Is SB true, based on SA?

Answer:
yes

Question:
SA: "In the middle of the outdoor concert, the rain started falling, but it continued until 10."

SB: "The concert continued until 10."

Is SB true, based on SA?

Answer:
yes

Question:
SA: "I can't cut that tree down with that axe; it is too thick."

SB: "The axe is too thick."

Is SB true, based on SA?

Answer:
no