public boolean onlyShowWordStrings() {
		// Return true if selected in dialog AND word model has been successfully initialized
		// in ValidStringIdentifier
		return options.onlyShowWordStrings() ? options.getWordModelInitialized() : false;
	}
returns 0 if the strings (they represent address ranges) have any overlap
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/string/CombinedStringSearcher.java