These latter vast regions of forests, rivers, and mountains border the Indonesian state of Kalimantan and the oil-rich sultanate of Brunei.
( ( ( These ( latter ( vast regions ) ) ) ( of ( forests ( , ( rivers ( , ( and mountains ) ) ) ) ) ) ) ( ( border ( ( ( ( the ( Indonesian state ) ) ( of Kalimantan ) ) and ) ( ( the ( oil-rich sultanate ) ) ( of Brunei ) ) ) ) . ) )
(ROOT (S (NP (NP (DT These) (JJ latter) (JJ vast) (NNS regions)) (PP (IN of) (NP (NNS forests) (, ,) (NNS rivers) (, ,) (CC and) (NNS mountains)))) (VP (VB border) (NP (NP (NP (DT the) (JJ Indonesian) (NN state)) (PP (IN of) (NP (NNP Kalimantan)))) (CC and) (NP (NP (DT the) (JJ oil-rich) (NN sultanate)) (PP (IN of) (NP (NNP Brunei)))))) (. .)))
There are mountains near to the border with Brunei.
( There ( ( are ( ( mountains near ) ( to ( ( the border ) ( with Brunei ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (VP (VBG mountains) (IN near) (PP (TO to) (NP (NP (DT the) (NN border)) (PP (IN with) (NP (NNP Brunei))))))) (. .)))