def coarse_pos(tags):
	"""
	Coarse POS tags of Peykare corpus:
		N: Noun, V: Verb, AJ: Adjective, ADV: Adverb, PRO: Pronoun, DET: Determiner, P: Preposition, POSTP: Postposition, NUM: Number, CONJ: Conjunction, PUNC: Punctuation, RES: Residual, CL: Classifier, INT: Interjection

	>>> coarse_pos(['N','COM','SING'])
	'N'
	"""

	return list(set(tags) & {'N', 'V', 'AJ', 'ADV', 'PRO', 'DET', 'P', 'POSTP', 'NUM', 'CONJ', 'PUNC', 'CL', 'INT', 'RES'})[0]