( Basically ( ( this animation ) ( ( is ( showing ( ( ( ( the ( four phases ) ) ( of ( the ( cell cycle ) ) ) ) , ) ( including ( G1 ( , ( Synthesis ( , ( G2 ( , ( and Mitosis ) ) ) ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (ADVP (RB Basically)) (NP (DT this) (NN animation)) (VP (VBZ is) (VP (VBG showing) (NP (NP (DT the) (CD four) (NNS phases)) (PP (IN of) (NP (DT the) (NN cell) (NN cycle))) (, ,) (PP (VBG including) (NP (NNP G1) (, ,) (NNS Synthesis) (, ,) (NNP G2) (, ,) (CC and) (NNP Mitosis)))))) (. .)))
Basically this animation is showing the four phases of the cell cycle, including G1, Synthesis, G2, and Mitosis.
(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.