{HEAD ~ A turbine} integrated within {TAIL ~ a hydrofoil} extracts energy from a free flowing motive fluid 
integrated within
{ HEAD ~ A turbine } integrated within { TAIL ~ a hydrofoil } extracts energy from a free flowing motive fluid
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH