Implements a Portuguese stemming algorithm proposed in the paper A Stemming Algorithm for the Portuguese Language by Moreira, V. and Huyck, C. Galician is an endangered language spoken in northwest region of Spain. Galician is morphologically similar to Portuguese but phonetics differs greatly. Due to the morphological similarity between Portuguese and Galician, Portuguese stemming algorithm can be adopted to stem Galician texts. See http://bvg.udc.es/recursos_lingua/stemming.html for stemming rules.