[Q]: The brown and black dog sprints across the snow.
A black dog is running quickly along the ground.

[A]: 3

[Q]: A man is standing on top of a rock or mountain watching the sun set.
A man standing in the mountains watching a sunset.

[A]: 5

[Q]: Mr Alibek said: "Our outcomes are very encouraging.
"Our outcomes are very encouraging," George Mason researcher Ken Alibek said.

[A]:
4