It allows the construction of a non-TAL ( Shieber , 1994 ) , ( Harbusch & Poller , 2000 ) .
restricting the weak generative capacity of synchronous tree adjoining grammar
S Shieber
Considering the original definition of S-TAGs , one can see that it does not restrict the structures that can be produced in the source and target languages . It allows the construction of a non-TAL ( Shieber , 1994 ) , ( Harbusch & Poller , 2000 ) . As a result , Shieber ( 1994 ) propose a restricted definition for S-TAG , namely , the IS-TAG for isomorphic S-TAG .
It allows the construction of a non-TAL ( @@CITATION ) , ( Harbusch & Poller , 2000 ) .