You need to answer the question 'Are the given steps in order?', given a set of steps describing a process. Your answer must be either Yes or No. If the answer is No, that means the steps are out of order and do not make sense in the order they are in. If the answer is Yes, that means the steps are in order and make sense in the order that they are in. A set of steps are not in order if the steps reference information that is introduced in a later step

 ['Bats fly through an area', 'The bat makes sounds with their mouth or nose', 'The sound waves travel away from the bat', 'The sound waves hit objects', 'The sound waves bounce off the objects back towards the bat', 'The bat hears the sound waves echoing off the objects', 'The bat knows where the objects are because of where the sound echoed from', 'The bat doesn't hurt itself by hitting the objects.'] 
  Yes  

 ['The cells in the body exchange the oxygen with carbon dioxide', 'Circulates through the body', 'The bloodstream carries the carbon dioxide back to the lungs', 'The oxygen passes through the bronchial tubes to the lungs', 'The lungs expel the carbon dioxide through the nose and mouth.', 'A person breathes in oxygen', 'The oxygen is moved into the bloodstream'] 
  No  

 ['Coal is burned in a boiler', 'Steam is produced under pressure', 'Flows into a turbine', 'The turbine spins', 'Creates electricity.'] 

  Yes