The guard is guarding the gate.

As the chief mourner, he arranged all the funeral proceedings.

Understanding Newton's third law is difficult.

The weight of this apple is about 1 newton.

Newton's laws are the foundation of physics.

He is good at playing the tuba.

His paintings have a surreal feel, and there are new discoveries every time I look at them.

This painting has a very surreal feel to it.

I went hiking in the mountains over the weekend for refreshment.

I like to refresh my spirits in nature on weekends.