['In', 'the', 'early', 'days', 'of', 'textile', 'production', ',', 'machines', 'like', 'the', 'spinning', 'wheel', 'and', 'the', 'wharl', 'played', 'a', 'crucial', 'role', 'in', 'the', 'manufacturing', 'process', '.', 'The', 'wharl', ',', 'a', 'small', 'pulley', 'fastened', 'onto', 'the', 'spindle', ',', 'allowed', 'for', 'the', 'smooth', 'running', 'of', 'the', 'band', 'that', 'drove', 'the', 'spindle', ',', 'significantly', 'enhancing', 'the', 'efficiency', 'of', 'yarn', 'production', '.', 'Without', 'the', 'innovation', 'of', 'the', 'wharl', ',', 'the', 'speed', 'and', 'quality', 'of', 'thread', 'would', 'have', 'been', 'considerably', 'reduced', '.']
[[15, 15, 'Textile Machinery']]