يَصْلُحُ تَوَقُّفُهُ عَلَيْهِ
Its occurrence can meaningfully depend on the requested result.
A genuine response construction requires tawaqquf—a plausible dependency of the consequence on the desired act or result. In akrimnī ukrimka, the promised reciprocal honor depends on the first honor.
A sentence should not be treated as a grammatical response merely because it follows a request. The relation may be practical, volitional or conversational; it need not always be a physical causal mechanism.