( ( Monitoring ( of groundwater ) ) ( , ( ( ( ( ( surface water ) , ) and ) sediments ) . ) ) )
(ROOT (S (NP (NP (NN Monitoring)) (PP (IN of) (NP (NN groundwater)))) (, ,) (VP (VP (VBP surface) (NP (NN water))) (, ,) (CC and) (VP (VBZ sediments))) (. .)))
Monitoring of groundwater, surface water, and sediments.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (S (NP (DT the) (NN ground)) (VP (VBZ absorbs) (NP (DT the) (NN water)))) (CC and) (S (NP (PRP it)) (VP (VBZ settles) (PP (IN below) (NP (DT the) (NN surface))))))) (NP (PRP it)) (VP (VBZ is) (VP (VBN called) (NP (NN groundwater)))) (. .)))