On the morning of the first day of the new year, I go to the first shrine visit with my family.

In chemistry class, I learned about alkanes.

Alkynes play a very important role in organic chemistry.

Alkenes, also known as olefin hydrocarbons, play an important role in organic chemistry.

Alkenes play a very important role in organic chemistry.

This shape is called a gyrobifastigium.

He ate three apples.

The character '喰' means to eat.

He is composing a poem.

In linear algebra, triangular matrices play a very important role.