He has a bicycle with two wheels.

Rintaro is my best friend.

Sarin is a type of nerve gas and is a very dangerous substance.

He is deeply interested in the philosophy of reincarnation.

He keeps making the same mistakes, as if he's going into an endless cycle.

He bought a new book on Amazon.

These two rooms are adjacent.

My house adjoins the park.

Vanillin, the primary constituent of vanilla, is characterized by its sweet aroma.

If you count the tree rings of this tree, you can tell how many years the tree has lived.