Xanthine is a type of alkaloid, which is found in coffee and tea.

He ate three apples.

He calculated the area of the triangle.

He is good at solving trigonometry problems.

He is good at arithmetic.

A day without seeing her feels like an eternity of waiting impatiently.

The election for the House of Councillors is approaching.

I live in Higashiyama.

Alexandria is a beautiful city in Egypt.

Their trio enchanted the audience.