There may be different varieties of Pig Latin. That is, it contains all strings of any length. The transducer is unambiguous in the top-down direction. That is, each string in the upper language corresponds to one and only one string in the lower language. Otherwise the output is the same as the input.
Words consist of consonants and vowels.
The consonants are b, c, d, f, g, h, j, k, l, m, n, p, q, r, s, t, v, w, x, y, z . The vowels are a, e, i, o, u . White space characters, space, and tab, are word separators. Here is an example of how things should work when you are done. Delete the initial consonant.