How many times have you been to Japan?

He was wearing a straw hat to avoid the summer sun.

He started writing the manuscript for his new novel.

He was walking along the beach wearing a straw hat.

He always tells me funny stories.

What is that?

He is muttering to himself.

His new song is composed in E flat major.

Variational method is a branch of mathematics used to find the minimum and maximum values of functions.

The idea for his new project came from nature.