If the tides change with the position of some heavenly body, then we can build cams that have shapes like the effect of the moon's orbit, and gear them together in the right order.
We can construct cams shaped like the moon's orbit.
It is impossible to construct any kind of cams.
The determination of abuse is not very subjective.
A kid is bouncing a ball at the park.
We wanted to make sure the armies stayed on their original path.
There's no roofing and we're in perpetual danger.
The doctors are operating.
A dog is carrying something near the water.