problem 5 Consider the following KB Suppose we have a working memory consisting of the following assertions: 1: runny nose 2: temperature =104F 3: headache 4: cough The rules in our rule base are: R1: if (nasal congestion and viruses), then diagnose (influenza) exit R2: if (runny nose), then assert (nasal congestion) R3: if (body aches), then assert (itchiness) R4 : if (temp >100 ), then assert (fever) R5: if (headache), then assert (itchiness) R6: if (fever and itchiness and cough), then assert (viruses) Use Forward Chaining and Backward Chaining to prove the Diagnosis