[Q]: Sentence: The Protocol on Environmental Protection to the Antarctic Treaty (also known as the Environmental Protocol or Madrid Protocol) came into force in 1998, and is the main instrument concerned with conservation and management of biodiversity in Antarctica. Question: When did the Environmental Protocol become effective?
++++++++++
[A]: yes

[Q]: Sentence: The therapsid lineage leading to mammals went through a series of stages, beginning with animals that were very like their pelycosaur ancestors and ending with probainognathian cynodonts, some of which could easily be mistaken for mammals. Question: At which group did Therapsids end with?
++++++++++
[A]: yes

[Q]: Sentence: On lower levels of society, there are the "area boys", organised gangs mostly active in Lagos who specialise in mugging and small-scale drug dealing. Question: How many civilians were killed in Lagos in Aug 2000-May 2001?
++++++++++
[A]:
no