The input is "what time are we climbing up the volcano" and because of this:

If two words have the same last letter, they returned array should show them in the order they appeared in the given string.

Tell my why is expected: '['time', 'are', 'we', 'the', 'climbing', 'volcano', 'up', 'what']',
not '['the', 'time', 'are', 'we', 'climbing', 'volcano', 'up', 'what']' ?