def s19(pair, graph): s = rwa(pair, graph, 4, 1, 1, 1, 1) return s
def s18(pair, graph): s = rwa(pair, graph, 1, 1, 1, 1, 1) return s
def s25(pair, graph): s = rwa(pair, graph, 1, 1, 4, 4, 1) return s
def s17(pair, graph): s = rwa(pair, graph, 1, 1, 4, 1, 4) return s
def s23(pair, graph): s = rwa(pair, graph, 4, 1, 1, 4, 1) return s