x1 expects/looks for the occurence of x2 (event), expected likelihood x3 (0-1, default {li} {so'a} i.e. near 1); x1 subjectively evaluates the likelihood of x2 (event) to be x3.
x1 (event/state) implies / suggests / is circumstantial evidence for x2 (du'u); the probability that x2 is true, given x1, is greater than the probability without x1