All of my siblings are doctors.

He believes in urban myths.

He and I are related by blood.

There is a complex love triangle between them.

His claim does not match the actual relationship.

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

This urban infrastructure, especially the development of highways, contributes greatly to economic development.

This is the book that I am reading.

That issue is irrelevant to our discussion.

His opinion is irrelevant to this issue.