Does "Almost all scientists acknowledge that the rate of species loss is greater now than at any time in human history, with extinctions occurring at rates hundreds of times higher than background extinction rates." contain the correct answer to "2012 studies estimated what percentage of mammals could be extinct in 20 years?"

A: no

Does "In Winter 2013, 39% of undergraduates were affiliated with a fraternity or sorority." contain the correct answer to "What percentage of undergraduates were affiliated with a fraternity or sorority in Winter 2013?"

A: yes

Does "In May 1987, Gaddafi announced the start of the "Revolution within a Revolution", which began with reforms to industry and agriculture and saw the re-opening of small business." contain the correct answer to "In what year did the "Revolution within a Revolution" begin?"

A:
yes