He found a building shaped like a pyramid.

In shogi, it's difficult to understand the movement of the bishop.

He is good at making cocktails.

My mobility dog helps me live my daily life.

The absolutive case is a grammatical case that can represent both the subject and the object.

He made a sentence using the accusative case.

This triangle has two acute angles.

He used his knowledge as an instrumental case to solve the problem.

This triangle has one obtuse angle.

My grandfather is skilled in raising domestic fowls.