<wob_jonas> slashlearn b_jonas can\'t spell//b_jonas can\'t spell these words: weird, hygiene, etymology, myopia, hibernate, carbohydrate, appearance, maintenance, appropriate, privilege, obsolete, heard, homogeneous, jealous; and confuses these sets of words: drought, draught/draft; couch, coach; depreciate, deprecate; dilate, dilute; contiguous, continuous; d

The bicyclic monoid is the free monoid generated by two wheels of a bicycle, quotiented by the restriction that the bicycle itself is equal to the identity.