continue;
}
// Punctuation normalization, etc.
Tree backupCopy = tree.deepCopy();
tree = tt.transformTree(tree);
if (tree.firstChild().children().length == 0) {
// Some trees have only punctuation. Tregex will mangle these. Don't throw those away.
System.err.println("Saving tree: " + tree.toString());
System.err.println("Backup: " + backupCopy.toString());
tree = backupCopy;