are either a signal, energy, or material flow of a consumer product of your choice (that has at least ten subfunctions). Describe, in first-person language and complete sentences, your journey as the functional flow from start to finish. • What form do you take as an input to the system? • What subfunctions translate your flow into different flow types? • Are there any functional flow losses caused by any subfunctions in the system? • What form do you take as an output from the system?