Potatoes (electrochemical cells or batteries) also have stored chemical energy which can be converted to electrical energy to run a clock or turn on a small light bulb.
(Potatoes; have stored; chemical energy which can be converted to electrical energy) (chemical energy; can be converted; to electrical energy; to run a clock or turn on a small light bulb)
Potatoes chemical energy
have stored can be converted
chemical energy which can be converted to electrical energy
to electrical energy to run a clock or turn on a small light bulb