His car spontaneously combusted all of a sudden.

Natural rights are rights that humans have from birth.

He always proactively suggests new ideas.

He claims to be a warrior for freedom of expression, but in reality, he's just someone who uses derogatory words.

I maintain my health by doing aerobic exercises every day.

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

He is writing a thesis on abiogenesis.

Natural language understanding is an important field of artificial intelligence.

We are planning to visit the nature reserve this weekend.

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