float facetBoost = scorer.score(docid);
Explanation facetExp = new Explanation();
facetExp.setDescription(facetName);
facetExp.setValue(facetBoost);
facetExp.addDetail(scorer.explain(docid));
boost *= facetBoost;
exp.addDetail(facetExp);
}
exp.setValue(boost);
exp.addDetail(innerExplaination);