GAO's prior work on best practices covers achieving the first knowledge point.
( ( ( ( GAO 's ) ( prior work ) ) ( on ( best practices ) ) ) ( ( covers ( achieving ( the ( first ( knowledge point ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NP (NNP GAO) (POS 's)) (JJ prior) (NN work)) (PP (IN on) (NP (JJS best) (NNS practices)))) (VP (VBZ covers) (S (VP (VBG achieving) (NP (DT the) (JJ first) (NN knowledge) (NN point))))) (. .)))
GAO's past work talks about achieving the first knowledge point.
( ( ( GAO 's ) ( past work ) ) ( ( talks ( about ( achieving ( the ( first ( knowledge point ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP GAO) (POS 's)) (JJ past) (NN work)) (VP (VBZ talks) (PP (IN about) (S (VP (VBG achieving) (NP (DT the) (JJ first) (NN knowledge) (NN point)))))) (. .)))