( there ( ( is ( ( no ( single ( ( organizer or ) individual ) ) ) ( responsible ( for ( their ( ( organization and ) execution ) ) ) ) ) ) . ) )
(ROOT (S (NP (EX there)) (VP (VBZ is) (NP (NP (DT no) (JJ single) (NN organizer) (CC or) (NN individual)) (ADJP (JJ responsible) (PP (IN for) (NP (PRP$ their) (NN organization) (CC and) (NN execution)))))) (. .)))
there is no single organizer or individual responsible for their organization and execution.
(ROOT (S (NP (NNP Individual)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT an) (NN organism)) (, ,) (CC or) (NP (JJ single) (VBG living) (NN thing)))))) (. .)))