WordAndRatioStruct
const WordAndRatioStruct &ItemA,
const WordAndRatioStruct &ItemB) const
WordAndRatioStruct /* Data type stored in the queue */,
vector<WordAndRatioStruct> /* Underlying container */,
WordAndRatioStruct /* Function for comparing elements */>
WordAndRatioStruct WordAndRatio;
const WordAndRatioStruct *WordRatioPntr;