( ( Each mound ) ( ( had ( ( ( at least ) two ) ( sprouted plants ) ) ) . ) )
(ROOT (S (NP (DT Each) (NN mound)) (VP (VBD had) (NP (QP (IN at) (JJS least) (CD two)) (JJ sprouted) (NNS plants))) (. .)))
Each mound had at least two sprouted plants.
(ROOT (S (NP (NNP New) (NNS plants)) (VP (VBP start) (S (VP (VBG sprouting) (PP (ADVP (NP (CD two) (NNS months)) (RBR later)) (IN after) (NP (DT a) (NN forest) (NN fire)))))) (. .)))