( This ( ( ( allows ( considerable flexibility ) ) ( as ( regards ( ( the location ) ( of ( participating objects ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ allows) (NP (JJ considerable) (NN flexibility)) (SBAR (IN as) (S (VP (VBZ regards) (NP (NP (DT the) (NN location)) (PP (IN of) (NP (VBG participating) (NNS objects)))))))) (. .)))
This allows considerable flexibility as regards the location of participating objects.
(ROOT (S (NP (NP (DT The) (NN flexibility)) (PP (IN of) (NP (DT an) (NN object)))) (VP (VBZ allows) (S (NP (PRP it)) (VP (TO to) (VP (VB bend))))) (. .)))
The flexibility of an object allows it to bend.