( ( The ( ( liquid metal ) ( outer core ) ) ) ( ( has ( ( ( ( a ( low viscosity ) ) ( -LRB- ( ( its runny ) -RRB- ) ) ) , ) ( ( ( a ( ( relatively even ) ( temperature distribution ) ) ) and ) ( a ( ( fairly ( ( rapid and ) consistent ) ) ( convection motion ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (ADJP (JJ liquid) (NN metal)) (JJ outer) (NN core)) (VP (VBZ has) (NP (NP (NP (DT a) (JJ low) (NN viscosity)) (PRN (-LRB- -LRB-) (NP (PRP$ its) (NNS runny)) (-RRB- -RRB-))) (, ,) (NP (NP (DT a) (ADJP (RB relatively) (RB even)) (NN temperature) (NN distribution)) (CC and) (NP (DT a) (ADJP (RB fairly) (JJ rapid) (CC and) (JJ consistent)) (NN convection) (NN motion))))) (. .)))
The liquid metal outer core has a low viscosity (its runny), a relatively even temperature distribution and a fairly rapid and consistent convection motion.
(ROOT (S (NP (DT The) (JJ outer) (NN core)) (VP (VBZ is) (VP (VBN made) (PP (IN of) (NP (JJ liquid) (NN metal))))) (. .)))