// best
// rules
if (bestRules != null) {
leftBoundaryBestRulesMap.put(slotName, bestRules.getRulesString(""));
leftBoundaryContextualRulesMap.put(slotName, ctxRules.getRulesString("\t"));
bestRules.clear(); // free som memory/references
}
if (shouldAbort())
return;
ctxRules.clear();
bestRules = learnTaggingRules(new TextRulerTarget(slotName, MLTargetType.SINGLE_RIGHT_BOUNDARY,