English English English English English English en.wikipedia.org... English English English English English http://en.wikipedia.org/wiki/Pentose English pentose English English English English English English English English English pentose English English English pentose English English Pentose English Pentoses English English English Pentoses English English five-carbon sugars English English English English pentose English English English English English English http://en.wikipedia.org/wiki/Pentose English English English English English English English English English English English English English English English English English English English English English pentose English English English English English English