when the chart gets prepared at ANVT then only the gaps created gets filled up according to WL..
ex GNWL 26 gets down at GD & GNWL 38 is from GD to KIR & GNWL 10 is from KIR to KYQ.. all 3 will be cleared with CNF & a seat alloted to them & thus they will get subsequent removed from WL..
It may also happen GNWL 33 who is from ANVT to KYQ might end up in WL but GNWL 38 gets cnf due to short distance..