i'm solving a multi part question regarding candidate keys and functional dependencies.
now i've already found 2 dependencies(the canonical covering of the functional dependencies contains only 3 dependencies) in the previous parts of the question: $D\to BE, CE \to AD$ ($R=A,B,C,D,E$, R is in BCNF). how can i find the third and last one? i need to find in order to figure the candidate keys
(didn't post the previous part of the questin because they're irrelavant, just posted what i found and all the needed information from the question).
thank you very much for your help!