Write a java program that: (You must use either a set or a map to solve the method) You are given n pairs of strings. Two pairs (a, b) and (c, d) are identical if a = c, and b = d. Note that (a, b) is not the same as (b, a). Create a method called uniquePairs() that reads n from the user, and after reading each pair as input, outputs the number of unique pairs you currently have. Sample Input: 5 blue red blue green red blue blue green blue red Output Input: 1 2 3 3 3

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