A deterministic finite state machine, equivalent to the regular expression (colours?)+|(crisp(ly)?)+
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A deterministic finite state machine, equivalent to the regular expression (colours?)+|(crisp(ly)?)+
A minimally deterministic finite state machine, equivalent to the regular expression (crispiest){1}|(crisp(ly)?){1}
A deterministic finite state machine, equivalent to the regular expression crisp|crisp(ly)?|crispnes+