( And ( ( during ( periods ( of drought ) ) ) ( , ( ( the dragon ) ( ( ( blesses ( the people ) ) ( with ( much-needed rain ) ) ) . ) ) ) ) )
(ROOT (S (CC And) (PP (IN during) (NP (NP (NNS periods)) (PP (IN of) (NP (NN drought))))) (, ,) (NP (DT the) (NN dragon)) (VP (VBZ blesses) (NP (DT the) (NNS people)) (PP (IN with) (NP (JJ much-needed) (NN rain)))) (. .)))
And during periods of drought, the dragon blesses the people with much-needed rain.
(ROOT (S (NP (NNS Droughts)) (VP (VBZ occurs) (SBAR (WHADVP (WRB when)) (S (NP (EX there)) (VP (VBZ is) (ADJP (JJ little) (PP (TO to) (NP (NP (DT no) (NN rain)) (PP (IN in) (NP (NP (DT a) (NN period)) (PP (IN of) (NP (NN time)))))))))))) (. .)))