Given the following passage "On March 10, 1876, three days after his patent was issued, Bell succeeded in getting his telephone to work, using a liquid transmitter similar to Gray's design. Vibration of the diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit. When Bell spoke the famous sentence "Mr. WatsonCome hereI want to see you" into the liquid transmitter, Watson, listening at the receiving end in an adjoining room, heard the words clearly.", answer the following question. Note that the answer is present within the text. Question: Who inspired Bell?
Answer:
Gray