The buzz on Pfizer's forthcoming potency pill, Viagra, is so good that the company's stock has already soared 74 percent.
There was no buzz on Viagra, stock remained the same. 
mnli hypothesis: There was no buzz on Viagra, stock remained the same.  premise: The buzz on Pfizer's forthcoming potency pill, Viagra, is so good that the company's stock has already soared 74 percent.