He wrote a new paper on string theory.

My new four-wheeled vehicle is very fast.

He is suspected of using a tampered ROM in pachinko.

That joke is hilarious, isn't it?

Trinitrotoluene is a compound often used in organic chemistry.

In organic chemistry, tritriacontane is a type of saturated hydrocarbon.

He is composing a poem.

His mansion is truly magnificent.

Chlorophyll is a compound necessary for plants to perform photosynthesis.

Castile is a part of Spain.