Group the following nouns into classes: simple, derivative, compound.
Taciturn, softwood, shutdown, segmentation, presumption, ply, handkerchief, agenda, picnic, persuasiveness, orbit, naught, mousetrap, lode star, loincloth, locomotive, foxtrot, feudalism, fiddle, reference, diphtheria, dirge, denunciation, deadlock, Commonwealth, commit ment, colonel, client, climbdown, campaign, calisthenics, bullfight, bulldozer, breadwinner, bikini, beano, asteroid, astigmatism, antithesis.