One part is important.

The bow is in the bag and the sword is in the sheath.

We decided to start a new project by joining our companies.

His actions clearly contained a meaning of contempt.

A mass noun refers to a noun that cannot be counted.

She had a beautiful headdress on her head.

She called me 'Tom'.

There was a swelling on his leg.

There is nothing in his room.

He had a big bump on his head.