how long has he been in his present position
( ( how long ) ( ( has he ) ( been ( in ( his ( present position ) ) ) ) ) )
(ROOT (SBARQ (WHADJP (WRB how) (JJ long)) (SQ (VBZ has) (NP (PRP he)) (VP (VBN been) (PP (IN in) (NP (PRP$ his) (JJ present) (NN position)))))))
What length of time has he held the current position?
( ( What ( length ( of time ) ) ) ( ( ( has he ) ( held ( the ( current position ) ) ) ) ? ) )
(ROOT (SBARQ (WHNP (WDT What) (NP (NN length) (PP (IN of) (NP (NN time))))) (SQ (VBZ has) (NP (PRP he)) (VP (VBN held) (NP (DT the) (JJ current) (NN position)))) (. ?)))