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Problems of German VP Coordination

Martin Forst and Christian Rohrer


In this paper, we present the implementation in the German ParGram LFG of verb phrase (VP) coordinations involving conjunction reduction and/or right node raising. We show how the computationally expensive approach proposed by Maxwell and Manning (1996) can be adopted for VP coordinations in a computationally efficient way so that many of these coordinations, which previously did not receive a correct analysis, are now analyzed soundly. We also show that the new rules obviate the need for a recursive right-branching VP rule and make it possible to define a flat VP rule instead. This is desirable for a number of reasons, including the definition of both hard and soft constraints on constituent order in the VP domain (needed in particular for generation).

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