The TIGER treebank and the TüBa-D/Z both contain newspaper text, but from different German newspapers.
to Kübler (2005) and Maier (2006), who converted the treebank before extracting the grammars in order to measure the impact of single features like topological fields or unary nodes on PCFG parsing, we convert the trees in the parser output of a parser trained on the original unconverted treebank resources.