An old person was playing with his grandchild in the park.

An old person was walking in the park.

He is known as an expert in gerontology.

Let's play the Werewolf game with friends tonight.

My grandfather is interested in gerontology.

My grandmother lives in a nursing home.

My grandmother participates in the local old people's club every week.

The perspective from the press seat is completely different.

I will leave my seat for a moment.

I will leave my seat temporarily.