( ( Beyond airodynamics ) ( , ( ( ( the creation ) ( of airplains ) ) ( ( ( did not ) ( advance ( ( our understanding ) ( of ( how ( ( ( the brain ) ( of birds ) ) ( controls flight ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Beyond) (NP (NNS airodynamics))) (, ,) (NP (NP (DT the) (NN creation)) (PP (IN of) (NP (NNS airplains)))) (VP (VBD did) (RB not) (VP (VB advance) (NP (NP (PRP$ our) (NN understanding)) (PP (IN of) (SBAR (WHADVP (WRB how)) (S (NP (NP (DT the) (NN brain)) (PP (IN of) (NP (NNS birds)))) (VP (VBZ controls) (NP (NN flight))))))))) (. .)))
Beyond airodynamics, the creation of airplains did not advance our understanding of how the brain of birds controls flight.
(ROOT (S (ADVP (RB Not) (RB surprisingly)) (, ,) (NP (JJ controlling) (NN flight)) (VP (VBZ is) (NP (NP (DT the) (NN function)) (PP (IN of) (NP (NP (DT the) (ADJP (RBS most) (JJ developed)) (NN part)) (PP (IN of) (NP (NP (DT a) (NN bird) (POS 's)) (NN brain))))))) (. .)))