The top thread is then pulled up by the take-up arm.
( ( The ( top thread ) ) ( ( ( is then ) ( ( pulled up ) ( by ( the ( take-up arm ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ top) (NN thread)) (VP (VBZ is) (ADVP (RB then)) (VP (VBN pulled) (PRT (RP up)) (PP (IN by) (NP (DT the) (JJ take-up) (NN arm))))) (. .)))
The top thread is pulled by the arm that has thread around it.
( ( The ( top thread ) ) ( ( is ( pulled ( by ( ( the arm ) ( that ( has ( thread ( around it ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ top) (NN thread)) (VP (VBZ is) (VP (VBN pulled) (PP (IN by) (NP (NP (DT the) (NN arm)) (SBAR (WHNP (WDT that)) (S (VP (VBZ has) (VP (VBN thread) (PP (IN around) (NP (PRP it))))))))))) (. .)))