He is known as an expert in gerontology.

He was diagnosed with tabes dorsalis.

Let's play the Werewolf game with friends tonight.

My grandfather is interested in gerontology.

Many workers are working in this factory.

My grandmother lives in a nursing home.

I like watching the lantern floating at the summer festival.

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

My grandfather recently started participating in the Internet Elderly Association.

He is making a small problem look big like a mantis's axe.