How to use the level. function in level

w["learn"]="160*1,455*1,465*1,470*1";
w["least"]="15*1,26*1,31*1,42*2,72*1,115*1,362*1,377*1,390*1,402*4,421*1,458*1,478*1,507*1";
w["leeway"]="254*1,344*1";
w["left"]="234*1,317*1";
w["legal"]="26*1,42*3,402*2";
w["legibl"]="402*4";
w["lellelid"]="27*1,189*1";
w["lemo"]="520*3";
w["lend"]="402*1";
w["length"]="42*1,130*1,208*1";
w["less"]="41*1,42*5,319*1,343*2,353*2,402*1";
w["lesser"]="42*13,520*3";
w["let"]="41*1,43*1,79*1,120*1,132*1,199*1,329*1,389*1";
w["letter"]="236*1,353*1";
w["level"]="117*1,138*2,167*1,250*5,254*1,257*2,268*2,294*2,300*1,318*1,338*2,344*1,354*2,375*3,389*2,408*1,414*1,424*1,433*2,440*2,445*2,451*2,456*3,460*1,486*2,487*1";
w["level."]="117*1,254*1,344*1";
w["level:"]="60*1";
w["levels."]="451*1";
w["lgpl"]="1*1,26*1,42*47,513*1,520*2";
w["lgpl."]="513*1";
w["lgpl.html"]="520*2";
w["lgpl.txt"]="42*2";
w["li"]="42*4,451*1";
w["liabl"]="42*1";
w["lib"]="6*10,42*3,67*2,115*2,144*6,192*6,213*1,248*2,262*2,276*6,285*1,373*1,450*6,461*6,480*6,496*1";
w["libr"]="42*2";
w["librari"]="42*141,53*1,115*1,169*1,174*1,179*2,194*1,258*4,319*1,354*1,416*1";
w["libraries."]="42*2,319*1";
w["library."]="42*17";
w["libxml2"]="28*1,169*1,236*1";
w["libxslt"]="146*2,169*1";
w["libxslt."]="146*1";