WiSe22/23: Constraint-based Semantics 2
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HPSG-neutral notation for LRS
Constraints
Metavariables: α, β, ɣ, ..., φ, ψ, ...
Contribution constraints:
- call(x)
The semantic representation of a sign with a contribution constraint of the form call(x) must be an expression containing call(x) as a subexpression - ¬α
The semantic representation of a sign with a contribution constraint of the form ¬α must be an expression containing ¬α as a subexpression where α can be any expression.
Embedding constraints:
- α[call(x)]
The metavariable α is any expression containing call(x) as a subexpression.
Combinatorial semantics
When two signs combine,
- all constraints on the combining signs' semantic representation also apply to the resulting combination, and
- additional constraints may be added through principles of grammar.
Internal content
internal content: The scopally lowest contributed element, marked as {...}
- call: {call(x)}
- everyone: ∀x({person(x)} : β[x])
External content
external content: The semantic representation of a complete sign, marked by underlining.
- everyone: ∀x({person(x)} : β[x])