P -> IS	AS
	AS -> IS ADI
	AS -> ADI
	IS -> IM erl_atz
	IM -> ize_arr
	IM -> ize_izb
	ADI -> adt
	erl_atz -> "k" | "a"
	ize_arr -> "ardo" | "egunkari" | "baloi"
	ize_izb -> "Pintxo" | "Kepa" 
	adt -> "dakar" | "darama"