What the Sewing Operator Does
( What ( ( the ( Sewing Operator ) ) Does ) )
(ROOT (SBAR (WHNP (WP What)) (S (NP (DT the) (NNP Sewing) (NNP Operator)) (VP (VBZ Does)))))
What functions the sewing operator performs
( ( What ( functions ( the ( sewing operator ) ) ) ) performs )
(ROOT (SBARQ (WHNP (WDT What) (NP (NP (NNS functions)) (NP (DT the) (JJ sewing) (NN operator)))) (SQ (VP (VBZ performs)))))