He was sustaining himself with local cuisine during his trip.

I'm scared of growing old.

He is working all day long.

An old person was walking in the park.

My grandfather is being seen by a specialist in geriatric medicine.

I think waste is an act of economic suicide.

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

An old person was walking in the park.

Tetsuro is my best friend.

My father is the leader of a labor union.