(S (S (BASENP (DT The) (NNP ILC)) (VP (VP (MD will) (VP (VB have) (NP (BASENP (DT a) (NN collision) (NN energy)) (PP (IN of) (BASENP (NN 500) (NN GeV)))))) (CC and) (VP (MD will) (VP (VP (VB collide) (NP (NP (BASENP (NNS electrons)) (PP (IN with) (NP (BASENP (NNS particles)) (PP (IN of) (BASENP (NN antimatter)))))) (PRN (COMMA ,) (VP (VBN called) (BASENP (NNS positrons))) (COMMA ,)))) (PP (IN along) (NP (DT a) (NP (ADJP (NN 30-40) (NN km)) (BASENP (ADJP (RB completely) (JJ straight)) (NN tunnel))))))))) (PERIOD .))