(S (S (BASENP (NNP FIFA)) (VP (VBD launched) (NP (BASENP (DT an) (NN investigation)) (PP (IN into) (NP (BASENP (DT an) (JJ on-field) (NN melee)) (SBAR (WHNP (WDT which)) (S (S (VP (VBD began))) (SBAR (IN after) (S (BASENP (DT the) (NNS penalties)) (VP (VBD had) (VP (VBN been) (VP (VBN decided) (PP (IN in) (NP (BASENP (NNP Germany) (POS 's)) (NN favor))))))))))))))) (PERIOD .))