A couple of hikers cross a bridge.
The hikers are moving.
The hikers are wading in the stream.
People are gathered on a sidewalk watching a plane fly overhead.
A cat plays the piano.
I saw nothing strange about the look in  Dorcas's eyes.
The woman is giving the baby a bath.
Hives have the primary features of honeycombs and separated labor.
Miners work their whole lives.