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 assigned the treatment and confounder inactive.
text_B: Would the patient has no freckles if taking of all assigned drugs instead of not taking of any assigned drugs?
yes.