( ( Phase four ) ( ( would ( be ( the ( actual construction ) ) ) ) . ) )
(ROOT (S (NP (NN Phase) (CD four)) (VP (MD would) (VP (VB be) (NP (DT the) (JJ actual) (NN construction)))) (. .)))
Phase four would be the actual construction.
(ROOT (S (NP (NNS Mitosis)) (ADVP (RB actually)) (VP (VBZ occurs) (PP (IN in) (NP (CD four) (NNS phases)))) (. .)))
Mitosis actually occurs in four phases.