BN: A, B, C, D, E
A = 0100010101
B = UNKNOWN
C = UNKNOWN
D = UNKNOWN
E = UNKNOWN
A XOR C XOR D = 1000011010;
A XOR C XOR E = 0000101010;
A XOR B XOR C XOR D = 0011101011
B XOR C XOR E = ???
Please fill in the correct answer for "???".