( ( As ( ( the rain ) ( duly arrived ) ) ) ( , ( so ( ( did ( ( ( several people ) ( seeking ( ( shelter , ) ( who ( ( moved off ) again ) ) ) ) ) ( when ( ( the rain ) stopped ) ) ) ) . ) ) ) )
(ROOT (SINV (SBAR (IN As) (S (NP (DT the) (NN rain)) (ADVP (RB duly)) (VP (VBD arrived)))) (, ,) (ADVP (RB so)) (VBD did) (NP (NP (JJ several) (NNS people)) (VP (VBG seeking) (NP (NP (NN shelter)) (, ,) (SBAR (WHNP (WP who)) (S (VP (VBD moved) (PRT (RP off)) (ADVP (RB again))))))) (SBAR (WHADVP (WRB when)) (S (NP (DT the) (NN rain)) (VP (VBD stopped))))) (. .)))
As the rain duly arrived, so did several people seeking shelter, who moved off again when the rain stopped.
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (PRP it)) (VP (VBZ rains)))) (, ,) (NP (DT some) (NNS animals)) (VP (MD will) (VP (VB move) (S (VP (TO to) (VP (VB seek) (NP (NN shelter))))))) (. .)))