src: Materiais adequados: fibra de algodão, lã, papel, roupas, pneus, PET, sucata de metal, resíduos de plástico, casca de arroz, casca de amendoim, etc.
tgt: Suitable materials: cotton fiber, wool, paper, clothing, tires, PET, scrap metal, waste plastic, rice husk, peanut shell, etc.