['In', 'the', 'realm', 'of', 'traditional', 'textile', 'production', ',', 'the', 'hand', 'spindle', 'has', 'been', 'a', 'crucial', 'tool', ',', 'particularly', 'known', 'for', 'its', 'whorl', ',', 'which', 'serves', 'as', 'the', 'weight', 'at', 'the', 'bottom', 'of', 'the', 'spindle', '.', 'This', 'weight', 'helps', 'in', 'balancing', 'the', 'spindle', 'during', 'the', 'spinning', 'process', ',', 'allowing', 'for', 'a', 'more', 'consistent', 'yarn', 'production', '.', 'The', 'whorl', 'can', 'be', 'made', 'from', 'various', 'materials', ',', 'including', 'wood', ',', 'stone', ',', 'or', 'metal', ',', 'each', 'impacting', 'the', 'spindle', "'s", 'efficiency', 'and', 'the', 'quality', 'of', 'the', 'yarn', 'produced', '.']
[[9, 10, 'Textile Machinery'], [21, 21, 'Textile Machinery']]