question:
As of June 2012[update], Pakistan's electricity problems were so severe that violent riots were taking place across Punjab.
Where were there riots in June 2012?

answer: no

question:
Under anaerobic conditions, iron and steel alloys are slowly oxidized by the protons of water concomitantly reduced in molecular hydrogen (H_2).
What is another name for formation of ferrous hydroxide?

answer: no

question:
The only significant group difference between these orientations was found in the amygdala, a brain region known to be involved in regulating fear.
How did both gay and straight men react to pictures of both naked men and women?

answer: no

question:
The City of Tucson, Pima County, the State of Arizona, and the private sector have all made commitments to create a growing, healthy economy[citation needed] with advanced technology industry sectors as its foundation.
How many optics-related companies are in Tucson?

answer:
no