Detailed information is needed to understand the nature of that project.

I was moved by his sincerity.

His nature is very kind.

Gender identity refers to the gender that each individual recognizes themselves as.

That plan is too impractical, it's difficult to implement.

Linear programming is a part of operations research and is used to find the optimal solution.

Paying the urban planning tax is a citizen's duty.

The United Nations Environment Programme is providing solutions to global environmental problems.

He is a person of strong vanity who reads self-improvement books.

He is the type of person who thinks it's a moonlit night if it's bright, so he only has a one-sided perspective.