Long ago--or away, or whatever--there was a world called Thar?? and another called Erath.
( ( ( ( ( ( Long ( ( ( ago -- ) or ) away ) ) , ) or ) whatever ) -- ) ( there ( ( was ( ( a world ) ( called ( ( ( Thar ?? ) and ) ( another ( called Erath ) ) ) ) ) ) . ) ) )
(ROOT (S (NP (NP (NP (NNP Long)) (ADVP (ADVP (IN ago)) (: --) (CC or) (ADVP (RB away)))) (, ,) (CC or) (NP (NNP whatever)) (: --)) (ADVP (RB there)) (VP (VBD was) (NP (NP (DT a) (NN world)) (VP (VBN called) (NP (NP (NNP Thar) (NNP ??)) (CC and) (NP (DT another) (VBN called) (NN Erath)))))) (. .)))
Thar and Erath were not the only worlds in existence then.
( ( ( Thar and ) Erath ) ( ( ( ( were not ) ( ( the ( only worlds ) ) ( in existence ) ) ) then ) . ) )
(ROOT (S (NP (NNP Thar) (CC and) (NNP Erath)) (VP (VBD were) (RB not) (NP (NP (DT the) (JJ only) (NNS worlds)) (PP (IN in) (NP (NN existence)))) (ADVP (RB then))) (. .)))