A specialization of Cyc-NL syntactic template predicate. Instances of Cyc-NL part-of-speech predicate are used to state the forms which words can take. The first argument of a Cyc-NL part-of-speech predicate must be an instance of English word, and the second must be an instance of character sequence. For example, (Singular Dog-TheWord dog ) means that the singular (noun) form of Dog-TheWord is dog .