Ancient people looked up at the sky and observed the movement of the stars.

Ancient people looked up at the sky and observed the movement of the stars.

When I looked up at the sky, a beautiful blue sky was spread out.

The sky is blue, and the weather is nice, isn't it?

He is my bodyguard.

Medical students are honing their communication skills through interactions with SPs (Simulated Patients).

She started reading a TS novel and became interested in the concept of genderswap.

He underwent a genderswap in the novel.

The Commonwealth of Independent States is an intergovernmental organization formed by part of the former Soviet Union.

His body is very healthy.