pred = entRel.getPredicate();
String feat = "pred:" + pred.getCoveredText().replace(' ', '_').toLowerCase();
feats.add(feat);
// get the relation this arg belongs to, then its predicate, then the other arguments (via relations)
FSList rels = entArg.getRelation().getPredicate().getRelations();
while(rels instanceof NonEmptyFSList){
NonEmptyFSList node = (NonEmptyFSList) rels;
SemanticRoleRelation curRel = (SemanticRoleRelation) node.getHead();
SemanticArgument curArg = curRel.getArgument();
if(entArg.getCoveredText().equals(curArg.getCoveredText())){