A famous detective was called in to solve a baffling murder mystery. He determined there was only one cause of death along with the following facts:
a.Mr. Harold, the murdered man, was killed by a blow on the head with a brass candlestick.
b.Either his wife, Mrs. Harold, or a maid, Sara, was in the dining room at the time of the murder.
c.If the cook was in the kitchen at the time of the murder, then the butler killed Harold with a fatal dose of strychnine.
d.If his wife was in the dining room at the time of the murder, then the chauffeur killed Mr. Harold.
e.If the cook was not in the kitchen at the time of the murder, then Sara was not in the dining room when the murder was committed.
f.If Sara was in the dining room at the time the murder was committed, then the wine steward killed Mr. Harold.
Convert the statements to symbols making sure you define each letter that you use. If it is possible to deduce the identity of the murderer from the above facts, then do so and explain your reasoning. If not, explain why.