The 600-cell is one of the regular polytopes in four dimensions.

He picked up the whip and started practicing.

Functional analysis is a branch of mathematics that studies the properties of functions in infinite-dimensional spaces.

I studied linear algebra at university.

He continued his journey to the west.

This offspring cannot yet be separated from its mother.

He cut the apple.

He gathered brushwood to keep warm.

Elephant tusks are very valuable.

The cat named Raku brought happiness to our family.