Erm on the basis that er we were, when we were setting the, the targets, the time was set by the work study personnel erm and then the operator was able to obtain a trial run on the time given er and if at the end of the work, he was satisfied that he had made the target bonus, or near enough, or if he was satisfied that, given a little extra opportunity to go back onto that job should it come back again in the near future, then he would, he would see clearly that he could make at least fifty percent er which was the target bonus, and probably more.