Natural language understanding is an important field of artificial intelligence.

This error is on line number 20.

My daughter caught fifth disease last week.

I bought a candy apple at the festival.

I could tell from his body language that he was angry.

Esperanto is one of the most well-known international auxiliary languages.

What is this mixture made of?

When he was late again, I shouted, 'Goddamn!'

I found a seahorse in the sea.

I found a rare seahorse in the sea.