private void addTreeToAlphabet(DepTree tree) {
for (DepTreeNode node : tree) {
if (node.getLabel() != WallDepTreeNode.WALL_LABEL) {
int idx = alphabet.lookupIndex(node.getLabel());
if (idx == -1) {
throw new RuntimeException("Unknown label: " + node.getLabel());
}
}
}
}
public Set<String> getTypes() {
Set<String> types = new HashSet<String>();
for (DepTree tree : this) {
for (DepTreeNode node : tree) {
types.add(node.getLabel());
}
}
types.remove(WallDepTreeNode.WALL_LABEL);
return types;
}
