... TAG by adjoining the relative clause into its wh-word as a predicative adjunct, and adjoining the wh-word into the parent noun phrase as a modifier, so the noun phrase is treated as an argument ... Synchronous Tree Adjoining Gram- mar (ISTAG) (Shieber, 1994; Shieber and Sch- abes, 1990), a variant of Tree Adjoining Gram- mar (Joshi, 1985) in which source and target elementary trees are assembled ... string of elementary trees, using indices on this enu- meration instead of on a string yield. It is important to note that in defining this algorithm, we assume that all trees associated with...