He played the grass flute, creating music of nature.

Pollen from common ragweed can cause allergies.

The pollen of common ragweed can cause allergies.

This national policy aims to stabilize the economy.

He made a plan to build a new house with his lawful wife.

There are many Trifolia repens blooming in my garden.

I found a clover in the park.

The surface of the pond was covered with duckweed.

Masasaku is my best friend.

This data center can process information in exabytes.