DELETE Node waf1;
DELETE Node waf2;
DELETE Node waf3;
DELETE Node waf4;
DELETE Node waf5;
DELETE Node waf6;
DELETE Node waf7;
DELETE Node waf8;
DELETE Node waf9;
DELETE Node waf10;
DELETE Node waf11;
DELETE Node waf12;
DELETE Node waf13;
DELETE Node waf14;
DELETE Node waf15;
DELETE Node waf16;
DELETE Node waf17;
DELETE Node waf18;
DELETE Node waf19;
DELETE Node waf20;
