He burned firewood to keep warm.

The atmosphere of this planet is harmful to humans.

After retiring from the military, he began pursuing a new career.

He retired from the military last year.

Japan began the colonisation of Hokkaido in the 19th century.

Japan once colonised Hokkaido.

A tachyon is a particle that is theoretically predicted to move faster than light.

He has physical strength, so he can work for a long time.

There are no aspirated consonants in Japanese.

I threw an octopus pot into the sea yesterday.