I take a propolis supplement every day.

My brother greatly respects the princess.

Provitamin is a substance that turns into a vitamin in the body.

He is skilled in profiling criminals.

He profiled the criminal.

He proposed to her using a prop.

My elder brothers and sisters are very kind.

My older paternal half brother is an important figure to me.

Older brother, what are you doing today?

Propene plays an important role in organic chemistry.