Once I got on the train, I felt relieved.

Conchology is the study of shells.

There are seven days in a week.

She is a beautiful girl

I bought a new shirt yesterday.

The stone was hard and cold to the touch.

He played a trick on his friends during the party.

I was approached by a stranger on the street.

She strongly believes in the power of education.

There was something weird about the incident.