( ( Lava ( ( flows and ) mudflows ) ) ( ( were ( also produced ) ) . ) )
(ROOT (S (NP (NN Lava) (NNS flows) (CC and) (NNS mudflows)) (VP (VBD were) (VP (ADVP (RB also)) (VBN produced))) (. .)))
Lava flows and mudflows were also produced.
(ROOT (S (NP (NP (DT A) (JJ sudden) (NN flow)) (PP (IN of) (NP (NN mud)))) (VP (VBZ is) (VP (VBN called) (NP (DT a) (PRN (-LRB- -LRB-) (NP (NN n)) (-RRB- -RRB-)) (NN mudflow)))) (. .)))