Before revision:  If humor reliably indicates conditions of a) anxiety induction, b) anxiety reduction, and c) the time-course relating these things--so productively constraining inference spaces regarding latent mental states--then we know a great deal about the values and capacities of the persons experiencing humor.
After revision:  If humor reliably indicates conditions of a) anxiety induction, b) anxiety reduction, and c) the time-course over which anxiety is reduced, then the intersection of these conditions productively constrains inference spaces over latent mental states with respect to the values and capacities of the persons experiencing humor.