The police used a water cannon against the demonstrators.

Learning a new input method is difficult.

He found forensic evidence.

Please find the square root of this number.

Mr. Kaiboku is my best friend.

When he opened the supernatural 'box', an unknown power was released.

Using a mnemonic, it became easier to remember new words.

I often quarrel with him.

Their team split up due to infighting.

I had a big fight with my friend yesterday.