a person dances on a rock.
A person is on the rock dancing.
No one is dancing on the rock today.
The flying raptors, fresh from circling the trash heaps on the edge of the city, were dinosuars.
The Committee sabotaged the federal managers by publishing guiding principles for implementing GPRA.
A black dog was dragging a sled as he wore the harness.
Two people ride on animals.
Santa Barbara and San Diego can be reached within two hours from Sacramento.
The person is lifting a log in his living room.