if (attribute(ranktags,yhosted).contains == 1, query(yhostedboost), 0) +

if (queryTermCount ~= 1, 123879 + nativeRank * 451704, 0) +
if (queryTermCount ~= 2, 103329 + nativeRank * 1117919, 0) +
if (queryTermCount ~= 3,
   if (nativeFieldMatch(title,abstract,body) > nativeRank * 10,
      118069 + nativeRank * 15423636,
      89269 + nativeRank * 2403380),
   0) +
if (queryTermCount ~= 4,
   if (nativeFieldMatch(title,abstract,body) > nativeRank * 30,
     67331 + nativeRank * 21479113,
     77567 + nativeRank * 2458897),
   0) +
if (queryTermCount > 4,
   if (nativeFieldMatch(title,abstract,body) > nativeRank * 10,
     57362 + nativeRank * 29637183,
     72934 + nativeRank * 3512633),
   0)