He was hiding the fact that he was an illegitimate child.

I'm sorry, but I don't speak Japanese.

I'm a Muslim, so I fast during Ramadan.

I'm Jewish.

We are planning to visit the nature reserve this weekend.

Natural language processing is a technology that allows computers to understand and analyze human language.

He is writing a thesis on abiogenesis.

He is an expert in physical anthropology, conducting research on human evolution.

Natural language understanding is an important field of artificial intelligence.