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

He solved the problem in a scientific way.

This reaction occurs through a chemical process.

He is good at tactical thinking.

He exercises every day and leads a healthy life.

Fundamental knowledge of mathematics is necessary to solve advanced problems.

This park was completely artificially made.

She is looking for an ideal partner.

He has expert knowledge.

He is troubled by chronic headaches.