The HPSG grammars we are using, closely resemble the proposals in [Pollard and Sag, 1987]. As far as the coding of the lexical functions is concerned, we have simply interpreted these as relation names. 3 Representation The main aim of the ET-10/?5 project, 'Collocations and the Lexicalisation of Semantic Operations '1, is to evaluate the use of Mel'~uk's analysis of collocations in terms of lexical functions 2, as an interlingun device in a machine translation system. In this poster we only point out the main design issues involved in encoding the essential parts of this analysis in an HPSG-style.