public static String asString(
String language, Activity activity, ObjectCombination objectCombination) {
String template =
(String) objectCombination.getTemplates().getAdditionalProperties().get(language);
template = template.replace('{', '<');
template = template.replace('}', '>');
ST st = new ST(template);
st.add("actor", displayName(activity.getActor()));
st.add("provider", displayName(activity.getProvider()));
st.add("object", displayName(activity.getObject()));
st.add("target", displayName(activity.getTarget()));
return st.render();
}
