(26a) vs. (26b) below:7 Compl X Compl X (a) Specifier on the left (b) Specifier on the right It turns out there is a considerable difference both in terms of the number of LR actions performed and the stack depth required to process an example like formalize, analyzed as formal-i(z)-e in (27) below:  7Two other specifier-head-complement configurations can be obtained.
we define the local domain of an asymmetrical relation r as the smallest domain where r applies.