The graph expresses the annual evolution of the frequency of use of the phrase «pocketknife» during the previous 500 years. On a pocketknife, it's good to have the stainless selection, which is easy to take care of.
Together with his pocketknife Kilmeny reduce the string that tied the sack. On a pocketknife, it's good to have the stainless variety, which is straightforward to look after.