Question:
The unions also staged a five-day strike in March that forced all but one of Yale's dining halls to close.
The unions also staged a five-day strike in March; strikes have preceded eight of the last 10 contracts.
Answer:
3

Question:
But butterflies exposed to an earlier light cycle, from 1am to 1pm, orientated themselves towards the south-east.
But butterflies housed under an earlier light cycle, 1 a.m. to 1 p.m., flew toward the southeast.
Answer:
5

Question:
Australian PM says 'Very confident' signals are from black box
Australian PM confident sounds are from Flight 370
Answer:
4