Write a loop that reads strings from standard input where the string is either "land", "air", or "water". the loop terminates when "" (five x characters) is read in. other strings are ignored. after the loop, your code should print out 3 lines: the first consisting of the string "land: " followed by the number of "land" strings read in, the second consisting of the string "air: " followed by the number of "air" strings read in, and the third consisting of the string "water: " followed by the number of "water" strings read in. each of these should be printed on a separate line. assume the availability of a variable, stdin, that references a scanner object associated with standard input.