  We present an integrated architecture for word-level and sentence-level
processing in a unification-based paradigm. The core of the system is a CLP
implementation of a unification engine for feature structures supporting
relational values. In this framework an HPSG-style grammar is implemented.
Word-level processing uses X2MorF, a morphological component based on an
extended version of two-level morphology. This component is tightly integrated
with the grammar as a relation. The advantage of this approach is that
morphology and syntax are kept logically autonomous while at the same time
minimizing interface problems.
