( ( ( ( ( Prior Knowledge ) ( -LRB- ( ( for students ) -RRB- ) ) ) : ) ( ( ( ( ( Plant ( cell parts ) ) , ) ( microscope use ) ) , ) ( ( friendly letter ) writing ) ) ) . )
(ROOT (NP (NP (NNP Prior) (NNP Knowledge)) (PRN (-LRB- -LRB-) (PP (IN for) (NP (NNS students))) (-RRB- -RRB-)) (: :) (NP (NP (NNP Plant) (NN cell) (NNS parts)) (, ,) (NP (NN microscope) (NN use)) (, ,) (NP (NP (JJ friendly) (NN letter)) (VP (VBG writing)))) (. .)))
Prior Knowledge (for students): Plant cell parts, microscope use, friendly letter writing.
(ROOT (S (NP (DT A) (NN microscope)) (VP (MD would) (ADVP (RBS best)) (VP (VB help) (S (NP (DT a) (NN person)) (VP (VB observe) (NP (NP (DT the) (NNS parts)) (PP (IN of) (NP (DT a) (NN plant) (NN cell)))))))) (. .)))