Which lines from "Mending Wally indicate that the neighbor is willing to participate in mending the wall? O We wear our fingers rough with handling them. Oh, just another kind of out-door game, One on a side. It comes to little more: There where it is we do not need the wall O To each the boulders that have fallen to each. And some are loaves and some so nearly balls We have to use a spell to make them balance "Stay where you are until our backs are tumed! o I let my neighbour know beyond the hill And on a day we meet to walk the line And set the wall between us once again. We keep the wall between us as we go. O Something there is that doesn't love a wall That sends the frozen-ground-swell under it, And spills the upper boulders in the sun, And makes gaps even two can pass abreast.