Task: Sentence Ordering
Input (English): Steps: (1) The bat sends out sound waves from their mouth or nose (2) Echoes are produced (3) The echo returns to the bat&#x27;s ears (4) The bat hears the echo (5) The bat can figure out where the object is located.  
Where does the following step fit into the given list of steps: The sound waves hit an object 
Output (English):  After step 1.