The grey nightjar is a bird that is active at night and, as its name suggests, it sings at night.

Kaizen is my best friend.

Yayoi is my best friend.

His last words were, 'It's okay to go.'

According to legends in Tohoku and Kanto, it is said that once you enter the 'mayoi-ya' (bewildering house), you can never get out.

That hooligan was making a fuss in the park.

He received training at the naval preparatory school.

The cormorant is good at catching fish.

His pronunciation has clear stops.

Dacite is a type of volcanic rock, and its color varies from gray to light pink.