The notation used in this document is easy to understand.

I am a non-smoker.

I have a number of books on my shelf.

His music collection includes not only rock and jazz but also a lot of pop.

I watched a movie last night.

I can't believe he didn't even apologize.

I don't know whether or not she will come to the party.

By now, he should have arrived at the airport.

I am busy right now.

I want nothing but happiness.