( ( ( At ( some point ) ) ( ( the fungi ) ( produce ( ( ( ( ( a ( reproductive structure ) ) , ) ( mushrooms ( for example ) ) ) , ) ( which ( produces ( thousands ( of ( tiny spores ) ) ) ) ) ) ) ) ) ( , ( these ( ( ( ( ( are then ) ( dispersed ( to ( other areas ) ) ) ) and ) ( grow ( into ( a ( new mycelium ) ) ) ) ) . ) ) ) )
(ROOT (S (S (PP (IN At) (NP (DT some) (NN point))) (NP (DT the) (NNS fungi)) (VP (VBP produce) (NP (NP (DT a) (JJ reproductive) (NN structure)) (, ,) (NP (NP (NNS mushrooms)) (PP (IN for) (NP (NN example)))) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ produces) (NP (NP (NNS thousands)) (PP (IN of) (NP (JJ tiny) (NNS spores)))))))))) (, ,) (NP (DT these)) (VP (VP (VBP are) (RB then) (VP (VBN dispersed) (PP (TO to) (NP (JJ other) (NNS areas))))) (CC and) (VP (VBP grow) (PP (IN into) (NP (DT a) (JJ new) (NN mycelium))))) (. .)))
At some point the fungi produce a reproductive structure, mushrooms for example, which produces thousands of tiny spores, these are then dispersed to other areas and grow into a new mycelium.
(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))))) (. .)))