selmo'i lujvo

x1 is a memory recalled by x2 about subject x3.

From se morji. mojysi'o, a near-synonym, is perhaps the more accurate translation for the English word 'memory'; pedantically, selmo'i refers only to memories consciously recalled at a given moment, not those that are merely retrievable.

In notes:

x1 (du'u) is a memory in the mind of x2
x1=v1=s1 is a word/set of words (able to be) recalled by x2=s2 about subject x3=s3; x1 is the vocabulary retrieved by x2.