Business is a relationship of give and take.

He decided to start a business.

We have maintained a good relationship for a long time.

His research is deeply related to my project.

I booked a business class for the next flight.

This project is offering a great business opportunity.

I spent a night at a business hotel.

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.