He found gold dust in the river.

He was lost in deep contemplation.

He pondered deeply and found a solution to the problem.

He is very passionate about composing poetry.

He is devoted to composing poems every day.

He is the player who scored the most points.

The trial production of the new product has been completed.

We are producing a prototype of a new product.

I'm thinking of sparing some time to solve his problem.

He took out his wallet from the side pocket.