source: [tag=JJ] [word=fluid] □ □
destination: [tag=JJ] [word=fluid] [□] □
spec: `` Secretary Rusk : '' Well , I think that one can say with reasonable confidence that both sides recognize that a nuclear exchange is not a rational instrument of policy and that mass divisions moving across national frontiers is far too dangerous to use as an easy instrument of policy , but now we have this problem of ' wars of liberation ' and we must find a complete answer to that , and the other side must realize that the use of militancy , of men and arms across frontiers in pursuit of what they call ' wars of liberation , ' also is too dangerous . Physiologically , the major factors that affect urate excretion are the tubular fluid pH , tubular fluid flow rate , and renal blood flow .