source header.xfst

define DetTag  [Det | DetDef | DetIndef | DetInt | DetPl |
                DetPoss | DetRel | DetSg];
define NounTag [Nn | NnPl | NnSg];
define AdjTag  [Adj | AdjComp | AdjSup];

define NounPhrase [Word DetTag [Word AdjTag]* Word NounTag];
define NPBeg [Space "NP["];
define NPEnd "]NP";

regex NounPhrase @-> NPBeg ... NPEnd;

invert net
save NP.fst