Q: The police officer shot the protester because he lost composure.
Who he is?
A: The police officer

Q: My brother put a Barbie that has metal parts in the microwave, so it does not work anymore.
Who it is?
A: the microwave

Q: AMD's Bulldozer chips have received lukewarm reception compared to Intel's Sandy Bridge chips since they were subpar in performance.
Who they is?
A:
AMD's Bulldozer chips