Read the given flow chart showing energy conversion and identify P - S.
P ------------- Q ------------- R ------------- S
ACar ----- Solar cooker ---- Windmill ----- Walking
BFan ----- Mango tree ----- Car ----- Sleeping
CMicrowave ----- Radio ----- Climbing ----- Reading
DBulb ----- Grass ----- Hydroelectricity ----- Running
How in case of fan electrical energy is converted to light and in case of sleeping chemical energy is converted to kinetic