Select the set in which the numbers are NOT related in the same way as are the numbers of the following set.
(NOTE : Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
(8, 13, 21)
(13, 18, 31)
1
(14, 19, 33)
2
(8, 3, 11)
3
(11, 16, 29)
4
(17, 12, 29)