SentenceForm initForm = nextForm.withName(GdlPool.getConstant("init"));
SentenceForm trueForm = nextForm.withName(GdlPool.getConstant("true"));
//Go through the rules and relations, making replacements as needed
for(int i = 0; i < newDescription.size(); i++) {
Gdl gdl = newDescription.get(i);
if(gdl instanceof GdlRelation) {
//Replace initForm
GdlRelation relation = (GdlRelation) gdl;
if(initForm.matches(relation)) {
GdlSentence newSentence = relation.get(0).toSentence();