He was waiting for the signal at the crossing.

This enzyme helps with chemical reactions in the body.

In this classical literature, the 'kouboten' plays an important role.

His opinion is directly opposite to mine.

This building is structurally very strong.

I started subscribing to that magazine.

I decided to subscribe to that magazine.

This structure is very complex.

He decided to call on a medium to communicate with his deceased grandfather.

He attempted to call the spirits of the dead using an ancient ritual.