On the platform stood an altar and a large stone pillar.
( ( On ( the platform ) ) ( ( stood ( ( ( an altar ) and ) ( a ( large ( stone pillar ) ) ) ) ) . ) )
(ROOT (S (PP (IN On) (NP (DT the) (NN platform))) (VP (VBD stood)) (NP (NP (DT an) (NN altar)) (CC and) (NP (DT a) (JJ large) (NN stone) (NN pillar))) (. .)))
There was an altar and a pillar on the platform.
( There ( ( was ( ( ( an altar ) and ) ( ( a pillar ) ( on ( the platform ) ) ) ) ) . ) )
(ROOT (S (NP (EX There)) (VP (VBD was) (NP (NP (DT an) (NN altar)) (CC and) (NP (NP (DT a) (NN pillar)) (PP (IN on) (NP (DT the) (NN platform)))))) (. .)))