Jackie noticed that she is feeling moody all the time and have little interest in doing things that she used to love. She feels bad about herself and often feels exhausted for no obvious reason.

Based on the rules, use forward chaining to predict whether or not Jackie has depression. If YES, what is her level of depression?

R1: feeling(X, down) v feeling(x, depressed) v feeling(X, hopeless) predict(depression) level(moderate) R2: thinking_of(x, death) v thinking_of(x, hurting_oneself) predict(depression) A level(severe) R3: (interest(X, little) v interest(X, no)) v (trouble(x, sleeping) v trouble(x, staying_awake) V trouble(x, concentrating)) feeling(X, depressed) R4: feeling(X, bad_about_oneself) feeling(X, hopeless) R5: feeling(X, exhausted) trouble(x, concentrating) R6: feeling(x, lonely) feeling(X, empty)