<http://schema.org/about>
"Fruit flies (or Drosophila melanogaster) are stealthy little guys that seem to smell rotting fruit from miles away. They do not come from the inside of the frui"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/healthy-spaces/questions/where-do-fruit-flies-come-from>