source: [word=specialises | word=Silva] [lemma=in] [lemma=multifacet] [□=□]
destination: [word=specialises | word=Silva] [lemma=in] [lemma=multifacet] [tag=□]
spec: Professor De Silva specialises in multifaceted research on the development of low-cost diets in aquaculture , in the context of the increasing cost of fishmeal and its relative scarcity in some regions .