Given an input String containing multiple words separated by spaces, return true if the first word occurs again anywhere later in the String (as its own word, or as a series of characters) and false otherwise.

HINT

I'd recommend the use of indexOf() with both one and two parameters, as well as substring(). Note also that the first word is really just some characters. You don't need to be fancy and assume that it will occur as a whole word later (see the "my army" example).