The gas leak caught fire and caused a huge explosion.

He dropped a lit cigarette, and the dry grass caught fire.

I wonder where my official name stamp is?

He dropped a lit cigarette and caused a fire.

His cigarette caught fire to the gasoline, causing a serious accident.

I forgot my official name stamp, so I can't sign the contract.

The clitoral glans is a part of the female genitalia and is very sensitive to sexual stimulation.