XMG and the Loria LTAG Parser 2

We will use our metagrammars with the Loria LTAG Parser 2 (LLP2). Please do the following:

• Copy the directory parsing to your home directory:

  $ cp -r /afs/sfs/lehre/wmaier/tag-seminar/parsing ~/
  $ cd ~/parsing

  The parsing directory contains

  small-english3.mg	a metagrammar
  lex	lexicon file containing base forms and their links to tree families of the metagrammar
  morph	another lexicon file, containing inflected forms and features contributed by the lexical items
  compilegram.sh	a script to compile these three files into a single grammar
  xmg-tag.dtd,xml	a link to the Document Type Definiton (DTD) of the TAGML2 XML format, needed during the compilation process

• Compile the grammar by typing

  $ ~/parsing/compilegram.sh small-english3.mg lex morph > grammar.xml

  The compiled grammar contains the anchored LTAG. To invoke the parser, type

  $ llp2-gui

  and load the compiled grammar. Alternatively, you can use the parser on the command line by typing

  $ llp2-parser [-feature] -tagml2 grammar.xml

• The grammar and the lexicon (lex and morph) already contain enough material to parse the following two sentences:

   (1) John sleeps
   (2) John always sleeps
  

  Now try the parser on the sentences (3)-(12). To get them parsed, you might have to add lexical material to the files lex and morph and/or tree classes to the metagrammar.

   (3) who sleeps
   (4) every boy sleeps
   (5) Mary loves John
   (6) who loves Mary
   (7) Mary thinks John sleeps
   (8) who thinks John sleeps
   (9) whom does Mary love
  (10) John gives a book to Mary
  (11) John gives Mary a book
  (12) what does John give to Mary