d="M 9 4 L 4 6 L 10 8 L 15 6 L 9 4 z M 4 7 L 4 13 L 9 15 L 9 9 L 4 7 z M 15 7 L 10 9 L 10 15 L 15 13 L 15 7 z M 18 7 L 17 8 L 16 9 L 18 11 L 18 9.7148438 C 18.624415 10.657919 19 11.778652 19 13 C 19 16.324 16.324 19 13 19 L 13 20 C 16.878 20 20 16.878 20 13 C 20 11.090887 19.232299 9.3761254 18 8.1171875 L 18 7 z "