He is on a streak of luck and won the lottery.

This uke-e is a work from the Edo period.

He gave an evasive answer to my question.

He was bored to death, so he decided to grind tea.

My younger sister is a student at Ochanomizu University.

This algorithm was developed for optimization.

We need to optimize this process.

It is difficult to find the optimal solution to this problem.

He started a new business using his business license.

This dress is made of rayon.