"Agglomerative Clustering"

Hi everyone,

i was trying to cluster sentences using Rapidminer's Kmeans algorithm, that was alright. But now my question is, is it possible to give a precomputed sentence to sentence similarity matrix to the Agglomerative clustering? I want to calculate the similarities between sentence using the Wordnet similarity functions and then I want to build the clusters using Agglomerative clustering.

Thanks a lot!

Best Regards,
Cris