Each of these random variables is binary-valued. F indicates whether your home is on fire, E indicates whether an earthquake is happening, A indicates whether your alarm system has gone off, B indicates whether your neighbor Bob has called to tell you that your alarm has sounded, and C indicates whether your neighbor Carol has called to tell you that your alarm has sounded. Perform exact inference by enumeration to compute P(F = 1 | B = 1) and P(F = 1 | C = 1)