Q: Does "In the US the main tool to track and stimulate voluntary actions is Green-e program managed by Center for Resource Solutions." provide a valid answer to "In the US, what is the main tool to track and stimulate voluntary actions?"?
A: yes

Q: Does "Following filming in Mexico, and during a scheduled break, Craig was flown to New York to undergo minor surgery to fix his knee injury." provide a valid answer to "Where did Craig go to deal with his injury?"?
A: yes

Q: Does "These do not reach exactly to the same elevation, nor are they often found growing together; but their upper limit corresponds accurately enough to the change from a temperate to a colder climate that is further proved by a change in the presence of wild herbaceous vegetation." provide a valid answer to "How many species of plants have been identified in the Alpine regions?"?
A: no

Q: Does "For instance, northern Nigeria did not outlaw slavery until 1936 whilst in other parts of Nigeria slavery was abolished soon after colonialism." provide a valid answer to "When did northern Nigeria ban slavery?"?
A:
yes