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

Ex Input:
 ['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.'] 

Ex Output:
  Yes  


Ex Input:
 ['Prophase, the chromosomes become visible', 'Centrioles separate to move to opposite poles', 'Metaphase, the chromosomes line up in the center', 'Anaphase, the chromatids separate', 'Are pulled apart', 'Telophase, the chromosomes gather at opposite poles', 'Two new nuclear membranes form', 'The cell membranes pinch', 'Divide into two individual cells'] 

Ex Output:
  Yes  


Ex Input:
 ['The plants and animals have shorter, less healthy lives', 'Eventually there is nothing living in the water and it is unusable', 'The number of plants and animals decreases over time', 'The pollution negatively affects the water quality', 'The plants and animals do not reproduce very well', 'The pollution negatively affects the health of plants and animals', 'Pollution enters natural water sources such as rivers and lakes', 'The quality of water gets worse and worse as there are no plants or animals to clean it'] 

Ex Output:

  No