The invention relates to a drive system having a first driving shaft and having a second driving shaft. Polymer compositions containing from 5 to 40% of monoethylenically unsaturated carboxylic acid monomer, from 35 to 65% of alkyl acrylate ester monomer and from 20 to 60% of alkoxylated acrylate monomer provide improved cleaning performance in laundry detergent formulations relative to conventional polymer compositions. The present invention also relates to natural language processing and extraction of relational information associated with genes and proteins that are found in genomics journal articles.