query.setRows(10);
query.setFilterQueries("cool");
query.set(FacetParams.FACET_QUERY, "color:red");
BoboRequestBuilder.applyFacetExpand(query, "color", true);
QueryResponse res = solrSvr.query(query);
SolrDocumentList results = res.getResults();
long numFound = results.getNumFound();
System.out.println("num hits: "+numFound);
for (SolrDocument doc : results){