I assume you mean, "Validate one sentence with its context."
In a confusing text, I do normally try to do find one part I can understand enough to proceed forward.
I am not able to do that in this case.
I have found that in discussion groups similar to this one, there is not too high an importance on making the subject easily comprehensible.
If the subject is valid, that is a very great underestimation of importance.
I had hoped to give this a try on the check have been holding for two weeks...