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.

Some luggage sitting is on top of some shelves
(3, 4)

A person is off falling of a wile horse
(4, 5)

A bus is driving towards a on plane the tarmac

(7, 8)