code: private Event createEvent(String obs) {
          int lastSpace = obs.lastIndexOf(StringUtils.SPACE);
          Event event = null;
  
          if (lastSpace != -1) {
              String label = obs.substring(lastSpace + 1);
              String[] contexts = obs.substring(0, lastSpace).split("\\s+");
              // Split name and value
              float[] values = RealValueFileEventStream.parseContexts(contexts);
              // Label, feature name, feature value
              event = new Event(label, contexts, values);
          }
  
          return event;
      }
docs: away pdiff=9.6875 ptwins=0.5 lose