Prepositions are an important part of grammar.

I placed the materials before the important meeting.

Monme is my favorite food.

My curfew is at 10 o'clock.

This rock is jyamongan, in other words, serpentinite.

This piece of art is made of serpentine.

He is interested in heraldry and is researching his family's coat of arms.

This cold is unbearable.

He is a disciple of a famous painter.

He was wearing a kimono with a mon proudly.