Exercise

$\backslash$table$[[$docID$,$document text,docID,document text$],[1,$hot chocolate cocoa beans,$7,$sweet sugar$],[2,$cocoa ghana africa,$8,$sugar cane brazil$],[3,$beans harvest ghana,$9,$sweet sugar beet$],[4,$cocoa butter,$10,$sweet cake icing$],[5,$butter truffles,$11,$cake black forest$],[6,$sweet chocolate,,$]]$

Clustering by $k-$means, with preprocessing tokenization, term weighting TFIDF. Manhattan Distance. Number of cluster is $2.$ Centroid docID $2$ and docID $9.$