例句與造句

1. A puzzle canon, riddle canon, or enigma canon is a canon in which only one voice is notated and the rules for determining the remaining parts and the time intervals of their entrances must be guessed . " The enigmatical character of a [ puzzle ] canon does not consist of any special way of composing it, but only of the method of writing it down, of which a solution is required ".
2. It's difficult to find enigma canon in a sentence. 用enigma canon造句挺難的