( ( The ( Yukon ( River delta ) ) ) ( ( forms ( ( ( a portion ) ( of ( ( the ( south ( ( shore and ) water ) ) ) ( from ( the Yukon ) ) ) ) ) ( influences ( ( this body ) ( of water ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NNP Yukon) (NNP River) (NN delta)) (VP (VBZ forms) (SBAR (S (NP (NP (DT a) (NN portion)) (PP (IN of) (NP (NP (DT the) (JJ south) (NN shore) (CC and) (NN water)) (PP (IN from) (NP (DT the) (NNP Yukon)))))) (VP (VBZ influences) (NP (NP (DT this) (NN body)) (PP (IN of) (NP (NN water)))))))) (. .)))
The Yukon River delta forms a portion of the south shore and water from the Yukon influences this body of water.
(ROOT (S (NP (NNP Delta)) (VP (VBZ is) (NP (NP (DT a) (NN triangular) (NN feature)) (SBAR (WHNP (WDT that)) (S (VP (VBZ is) (VP (VBN formed) (SBAR (WHADVP (WRB when)) (S (NP (DT a) (NN river)) (VP (VBZ empties) (PP (IN into) (NP (NP (DT a) (JJ large) (NN body)) (PP (IN of) (NP (RB still) (NN water)))))))))))))) (. .)))