With no explanation, label text_A→text_B with either "no" or "yes".
text_A: We know that confounder active and assignment of drug treatment causes taking of all assigned drugs. confounder active and taking of all assigned drugs causes freckles. We observed the patient is not assigned the drug treatment and confounder inactive.
text_B: Would the patient has no freckles if not taking of any assigned drugs instead of taking of all assigned drugs?
yes.