His opinion is insignificant.

He was late, but it's not a big deal.

How about trying a new restaurant?

I don't know if he will come.

His success had a cause-and-effect relationship with his efforts.

He and I are related by blood.

There is a complex love triangle between them.

This is the book that I am reading.

His claim does not match the actual relationship.

The police only informed the authorized persons about the information related to the incident.