There is a possibility that unknown lifeforms exist on this planet.

The popularity of that band is rapidly increasing.

My friend came from Mexico.

What is his stage name?

He made a sacrifice of his life to accomplish the mission.

His stage name is 'Samurai'.

She said she has seen a mermaid in the sea.

His father is currently receiving life support treatment.

The doctor provided him with life support treatment.

Ivermectin is used to treat parasitic infections.