He flipped the pancake.

This fritter is very delicious.

The traffic on this road is always congested.

She specializes in the study of sapphism.

Porphyrin is a compound that plays an important role in the body.

In organic chemistry, porphin plays an important role.

Thiophene is a compound often used in organic chemistry.

Fergus is my best friend.

He is using morphine to alleviate pain.

You often see spotted seals in the sea of Hokkaido.