I woke up at the witching hour.

Following the customs of the time, they celebrated the festival.

During rush hour, the trains are very crowded.

He drew a heptagon shape.

Nanamiko is my best friend.

Mr. Nanatani is my best friend.

My younger sister is seventeen years old.

Let's have a barbecue with a shichirin tonight.

It's very interesting to learn about the Seven Wonders of the World.

My grandfather is seventy years old.