I learned the theory of commutative rings at university.

There is a necessity for his participation in the success of this project.

My niece is very smart.

That was a certain result.

His collection of essays is very interesting.

That result was certain.

She is a true gallant woman, always defending justice and helping the weak.

The georgette dress is very light and beautiful.

There is a delicious ramen shop near my place.

She is my best understanding person.