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mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_es">letras</topic></authority><related type="narrower"><topic>letras mayúsculas</topic></related><related type="narrower"><topic>letras minúsculas</topic></related><related type="narrower"><topic>letras de caja baja</topic></related><related type="narrower"><topic>letterforms (traducció pendent)</topic></related><related type="other"><topic>rotulación</topic></related><related type="broader"><topic>signos fonéticos</topic></related><variant type="other"><topic>letra</topic></variant></mads>