This area is rich in bedded cupriferous iron sulphide deposits.

I made a teru teru bozu so that it wouldn't rain.

The baby's eyes are big and cute, aren't they?

She is good at playing the guitar, isn't she?

This furnace is very efficient.

Mom, will you make tea for me?

He proposed a new theory about the problem.

He is deeply researching that theory.

He is good at logical thinking.

I am planning to go to Russia next week.