x1 is a tool/utensil/resource/instrument/implement used for doing x2; [form determines function].
(cf. cabra, minji, se pilno, zukte, sazri, basic tool types: salpo, pulni, cfine, klupe, jendu, xislu, vraga; utensils: forca, smuci, dakfu; specifics: balre, mruli, cinza, garna, pijne, pambe, canpa, pilno, vraga)