When you open the bag, see also found that black pebbles. The girl took the mention that "when pebbles in the bag is black, shows that I have a handful of pebbles white walls."
Upon opening the bag I found a pebble is black. The young lady said that "When a black pebbles in the bag. That I had picked the white pebble itself. "
When opening the bag. It is found that the pebbles black girl had said that "when the pebbles in the bag is colored black. So I take the white pebble itself. "