( ( ( Limb Axis ) ( ( The ( imaginary line ) ) ( between ( ( ( the ( root joint ) ) and ) ( the ( end effector ) ) ) ) ) ) . )
(ROOT (NP (NP (NNP Limb) (NNP Axis)) (NP (NP (DT The) (JJ imaginary) (NN line)) (PP (IN between) (NP (NP (DT the) (NN root) (NN joint)) (CC and) (NP (DT the) (NN end) (NN effector))))) (. .)))
Limb Axis The imaginary line between the root joint and the end effector.
(ROOT (S (NP (NP (DT The) (NNS axis)) (PP (IN of) (NP (DT the) (NN plant)))) (VP (VBZ has) (NP (NP (DT a) (NN root) (NN end)) (CC and) (NP (DT a) (NN shoot) (NN end)))) (. .)))