Extremism threatens the stability of society.

He is deeply involved in the study of Islamism.

I went to the station through the underground passageway.

It is believed that liberalisation of imports promotes economic growth.

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

I want to go see the Statue of Liberty someday.

He is good at solving technical problems.

He always has an optimistic attitude.

His music is very avant-garde, and some people might not understand it.

He is facing economic problems.