Before revision:  Using the hypothesis and approximation, we were able to isolate and infer utility function and norm function from real-world measurement data of actions on environmental conditions , and elucidate the interaction between the both functions to lead actions from current to target .
After revision:  Using the hypothesis and approximation, we were able to isolate and infer utility function and norm function from real-world measurement data of actions on environmental conditions and elucidate the interaction between the both functions to lead actions from current to target .