Premise: Back in the 1950s, twin colossi sat astride the Hudson, figuratively glowering at each  Betty Friedan in Grandview on the West Bank, writing The Feminine Mystique , and John Cheever in Scarborough on the East Bank, writing the Wapshot books and the short stories.

Hypothesis: In the 1950s two famous authors lived near the Hudson river.
Relation: entailment