He was drawing an enneadecagon shape.

My father got married when he was twenty-nine.

He achieved the 'all simples' yaku in mahjong.

My grandfather is ninety-two years old.

My father is thirty-nine years old.

Our project is scheduled to be completed on the nineteenth day.

Kumon Yume is my best friend.

He solved the problem in a scientific way.

This reaction occurs through a chemical process.

He is good at tactical thinking.