Syntactic relations
From UNLwiki
				Syntactic roles are the roles that constituents play inside a syntactic structure. The UNLarium framework follows the X-bar approach and proposes six main syntactic roles:
- HEAD is the nucleus or the source of the whole syntactic structure, which is actually derived (or projected) out of it. In the UNLarium framework, there are 8 possible heads:
- N = nouns and nominals
 - J = adjectives and adjectivals
 - V = full verbs and verbals
 - A = adverbs and adverbials
 - P = adpositions (prepositions, postpositions, circumpositions)
 - I = auxiliary verbs
 - D = determiners
 - C = complementizers (conjunctions)
 
 - COMP (i.e., complement) is an internal argument, i.e., a word, phrase or clause which is necessary to the head to complete its meaning (e.g., objects of transitive verbs);
 - ADJT (i.e., adjunct) is a word, phrase or clause which modifies the head but which is not syntactically required by it (adjuncts are expected to be extranuclear, i.e., removing an adjunct would leave a grammatically well-formed sentence);
 - SPEC (i.e., specifier) is an external argument, i.e., a word, phrase or clause which qualifies (determines) the head;
 - XB (intermediate projection) is any of the intermediate structures projected out of the head; and
 - XP (maximal projection) is the most comprehensive structure projected out of the head.
 
These general roles are further specified according to the eight possible syntactic heads as follows:
{{#tree:id=SYN|openlevels=0|root=Syntactic roles (SYN)|
- adjunct (XA)
- adjunct to the head of an adjective phrase (JA)
 - adjunct to the head of an adverbial phrase (AA)
 - adjunct to the head of a complementizer phrase (CA)
 - adjunct to the head of a determiner phrase (DA)
 - adjunct to the head of an inflectional phrase (IA)
 - adjunct to the head of a nominal phrase (NA)
 - adjunct to the head of a prepositional phrase (PA)
 - adjunct to the head of a verbal phrase (VA)
 
 - complement (XC)
- complement of the head of an adjective phrase (JC)
 - complement of the head of an adverbial phrase (AC)
 - complement of the head of a complementizer phrase (CC)
 - complement of the head of a determiner phrase (DC)
 - complement of the head of an inflectional phrase (IC)
 - complement of the head of a nominal phrase (NC)
 - complement of the head of a prepositional phrase (PC)
 - complement of the head of a verbal phrase (VC)
 
 - head (XH)
- head of an adverbial phrase (AH)
 - head of an adjective phrase (JH)
 - head of a complementizer phrase (CH)
 - head of a determiner phrase (DH)
 - head of an inflectional phrase (IH)
 - head of a nominal phrase (NH)
 - head of a prepositional phrase (PH)
 - head of a verbal phrase (VH)
 
 - specifier (XS)
- specifier of the head of an adjective phrase(JS)
 - specifier of the head of an adverbial phrase (AS)
 - specifier of the head of a complementizer phrase (CS)
 - specifier of the head of a determiner phrase(DS)
 - specifier of the head of an inflectional phrase (IS)
 - specifier of the head of a nominal phrase (NS)
 - specifier of the head of a prepositional phrase (PS)
 - specifier of the head of a verbal phrase (VS)
 
 - maximal projection (XP)
- adjective phrase (JP)
 - adverbial phrase (AP)
 - complementizer phrase (CP)
 - determiner phrase (DP)
 - inflectional phrase (IP)
 - nominal phrase (NP)
 - prepositional phrase (PP)
 - verbal phrase (VP)
 
 - intermediate projection (XB)
- adverbial phrase (AB)
 - adjective phrase (JB)
 - complementizer phrase (CB)
 - determiner phrase (DB)
 - inflectional phrase (IB)
 - nominal phrase (NB)
 - prepositional phrase (PB)
 - verbal phrase (VB)
 
 - trace (TRACE)
 
}}
Examples
- complement of the head of an adverbial phrase (AC): contrarily [to popular belief]
 - specifier of the head of an adverbial phrase (AS): [nearly] always
 - complement of the head of a complementizer phrase (CC): if [John comes]
 - specifier of the head of a complementizer phrase (CS): [even] if
 - specifier of the head of a determiner phrase(DS): [almost] every
 - complement of the head of an inflectional phrase (IC): will [kiss Peter]
 - specifier of the head of an inflectional phrase (IS): [Mary] will (kiss Peter)
 - adjunct to the head of an adjective phrase (JA): beautiful [to see]
 - complement of the head of an adjective phrase (JC): loyal [to the queen]
 - specifier of the head of an adjective phrase(JS): [very] loyal
 - adjunct to the head of a nominal phrase (NA): [beautiful] table
 - complement of the head of a nominal phrase (NC): construction [of Babel]
 - specifier of the head of a nominal phrase (NS): [the] construction
 - complement of the head of a prepositional phrase (PC): under [the table]
 - specifier of the head of a prepositional phrase (PS): [right] under
 - adjunct to the head of a verbal phrase (VA): loved [desperately]
 - complement of the head of a verbal phrase (VC): loved [Mary]
 - specifier of the head of a verbal phrase (VS): [never] loved
 
Further information
For further information on the syntax approach of the UNLarium refer to X-bar.