( ( Consider ( that ( ( human evolution ) ( progresses ( at ( a ( ( very ( , ( very slow ) ) ) pace ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Consider) (SBAR (IN that) (S (NP (JJ human) (NN evolution)) (VP (VBZ progresses) (PP (IN at) (NP (DT a) (ADJP (RB very) (, ,) (RB very) (JJ slow)) (NN pace))))))) (. .)))
Consider that human evolution progresses at a very, very slow pace.
(ROOT (S (NP (NNP Human) (NN evolution)) (VP (VBZ shows) (SBAR (IN that) (S (NP (JJ evolutionary) (NNS changes)) (ADVP (RB typically)) (VP (VBP occur) (PP (IN at) (NP (DT a) (JJ slow) (NN pace))))))) (. .)))