Search the lexicon


First Order Projection Condition

MORPHOLOGY: a condition proposed in Selkirk (1982) which says that

All non-SUBJ arguments of a lexical category Xi must be satisfied 
within the first order projection of Xi (where the first order 
projection of a category Xi is the category that immediately dominates 
it, whether in word structure or in syntactic structure).
The FOPC is Selkirk's (1982) counterpart of Roeper & Siegel's (1978) First Sister Principle (FSP). The FOPC as well as the FSP are intended to account for (i) the relationship between he drives a truck, truck driver, and driver of trucks, (ii) the difference in well-formedness between the compounds truck driver, on the one hand, and *quick driver (next to drive a truck quickly), and *child driver (next to a child drives a truck) on the other. The FOPC and the FSP are not equivalent. The difference has to do with the data in (i)-(iii):
(i)	  eater of pasta in trees
(ii)	* tree eater of pasta
(iii)	* pasta eater in trees
The FOPC accounts for the ungrammaticality of both (ii) and (iii), since one of the non-SUBJ arguments of eat is not realized within its first order projection (= tree eater in (ii) and pasta eater in (iii)). The FSP has no explanation for the ungrammaticality of (iii).
LIT. Roeper, T. and D. Siegel (1978)
Selkirk, E. O. (1982a)
Spencer, A. (1991)