( They ( ( ( germinate and ) ( start ( to ( ( produce mycelium ) ( in ( the soil ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VP (VBD germinate)) (CC and) (VP (VBP start) (S (VP (TO to) (VP (VB produce) (NP (NN mycelium)) (PP (IN in) (NP (DT the) (NN soil)))))))) (. .)))
They germinate and start to produce mycelium in the soil.
(ROOT (S (NP (NP (DT Some)) (PP (IN of) (NP (DT the) (JJ giant) (NN fairy) (NNS rings)))) (VP (VBP are) (VP (VBN produced) (PP (IN by) (NP (NN mycelia))))) (. .)))