( ( Apart ( from ( ( their size ) ( what ( they ( all ( have ( in common ) ) ) ) ) ) ) ) ( ( is ( that ( they ( ( are all ) desperate ) ) ) ) . ) )
(ROOT (SINV (PP (ADVP (RB Apart)) (IN from) (NP (NP (PRP$ their) (NN size)) (SBAR (WHNP (WP what)) (S (NP (PRP they)) (ADVP (DT all)) (VP (VBP have) (VP (PP (IN in) (NP (JJ common))))))))) (VP (VBZ is)) (SBAR (IN that) (S (NP (PRP they)) (VP (VBP are) (RB all) (ADJP (JJ desperate))))) (. .)))
Apart from their size what they all have in common is that they are all desperate.
(ROOT (S (NP (DT All) (NNS cells)) (VP (VBP have) (NP (NP (DT the) (JJ small) (NN size)) (PP (IN in) (NP (JJ common))))) (. .)))