( We ( ( have ( operated ( ( ( as ( many ( as four ) ) ) ( parallel ( flow cells ) ) ) ( in ( this system ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP have) (VP (VBN operated) (NP (NP (QP (RB as) (JJ many) (IN as) (CD four)) (JJ parallel) (NN flow) (NNS cells)) (PP (IN in) (NP (DT this) (NN system)))))) (. .)))
We have operated as many as four parallel flow cells in this system.
(ROOT (S (NP (NNS Cells)) (VP (VBP have) (NP (CD four) (NNS cycles))) (. .)))