['In', 'the', 'early', '19th', 'century', ',', 'the', 'introduction', 'of', 'the', 'power', 'loom', 'revolutionized', 'textile', 'production', '.', 'Among', 'its', 'components', ',', 'the', 'slay', 'played', 'a', 'crucial', 'role', 'by', 'moving', 'the', 'reed', 'forward', 'to', 'beat', 'up', 'the', 'weft', '.', 'This', 'mechanism', 'allowed', 'weavers', 'to', 'produce', 'fabrics', 'more', 'efficiently', '.', 'Additionally', ',', 'the', 'sley', 'was', 'essential', 'in', 'maintaining', 'the', 'tension', 'of', 'the', 'warp', 'threads', ',', 'ensuring', 'a', 'smooth', 'and', 'consistent', 'weaving', 'process', '.', 'Modern', 'adaptations', 'of', 'these', 'machines', 'have', 'streamlined', 'their', 'functions', ',', 'but', 'the', 'basic', 'principles', 'remain', 'the', 'same', '.']
[[21, 21, 'Textile Machinery'], [50, 50, 'Textile Machinery'], [10, 11, 'Textile Machinery']]