Gigaword

How to search the Gigaword corpus with tgrep2 at the University of Frankfurt

What is the Gigaword corpus?

https://catalog.ldc.upenn.edu/LDC2011T07

What is tgrep2?

tgrep2 is a program to search corpora that are in the format of the Penn Treebank. Here is an example of a sentence in this format:

(ROOT (S (NP (NP (DT The) (NN duo)) (, ,) (RRC (ADVP (RB together)) (PP (IN with) (NP (CD 11) (NNS accomplices)))) (, ,)) (VP (VBD raised) (NP (QP (JJR more) (IN than) (CD 4) (CD billion)) (NN yuan)) (PP (IN from) (NP (NNP April) (CD 2004))) (PP (TO to) (NP (NNP July) (CD 2008)))) (. .)))