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Examples

Figure B.1 shows a metarule for wh-movement of the subject. Among the trees to which it have been applied are the basic trees of intransitive, transitive and ditransitive families (including prepositional complements), passive trees of the same families, and ergative.
  
Figure B.1: Metarule for wh-movement of subject
lhsrhs

Figure B.2 shows a metarule for wh-movement of an NP in object position. Among the trees to which it have been applied are the basic and passive trees of transitive and ditransitive families.
  
Figure B.2: Metarule for wh-movement of object
lhsrhs

Figure B.3 shows a metarule for general wh-movement of an NP. It can be applied to generate trees with either subject or object NP moved. We show in Figure B.4, the basic tree for the family Tnx0Vnx1Pnx2 and the tree wh-trees generated by the application of the rule.
  
Figure B.3: Metarule for general wh movement of an NP
lhsrhs


  
Figure B.4: Application of wh-movement rule to Tnx0Vnx1Pnx2
Tnx0Vnx1Pnx2subject moved
  
NP object movedNP object moved from PP


next up previous contents
Next: The Access to the Up: Metarules Previous: Feature Matching
XTAG Project
1998-09-14