He lived in Japan for a year and a half.

His answer was confirmed to be correct.

Abstract algebra is a branch of mathematics that studies algebraic structures.

He is an expert in algebraic geometry.

I studied linear algebra at university.

He is good at algebra.

There are times when we perform calculations with the haversine in trigonometry.

He is known as a person with learning.

There was a long queue in front of the movie theater.

People were forming a line from early morning to buy concert tickets.