There are 11 types of phrase types in the corpus including BNP, BAP, BVP, BDP, BQP, BTP, BFP, BNT, BNS, BNZ, and SV (see details in [18]).
the noun phrase rules are generated from the instances which are initially extracted from corpusS, then refined by re-testing on the same corpus without BNP chunks, and finally manually checked as shown in table 1.