He tried to open the door using a crowbar.

He pointed out the location on the map using a pointer.

He laughed at the children who were waving sticks.

He waved a stick to drive the dog away.

My grandfather used to till his privately-owned rice field.

The control rod adjusts the reaction of the nuclear reactor.

There are a lot of wrigglers in this pond.

There are many wrigglers in this puddle.

He holds a personal grudge against me.

In this picture, a red vertical line is drawn.