In this task, positions of two consecutive words have been swapped. You need to output the position of the swaped words. e.g. in the sentence 'Seattle has nice a weather', the word 'a' and 'nice' have been swapped. These words are at 3rd and 4th position respectively. So, the output should be (3, 4). Note that the index of first word is 1.
--------
Question: an is elephant walking on some grass and some trees

Answer: (2, 3)


Question: a and yellow silver train sitting on the track

Answer: (2, 3)


Question: The four boats are waiting to in sail the twilight

Answer:
(7, 8)