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

Example Input:  ['The saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow', 'Your tongue helps out, pushing the food around while you chew with your teeth', 'Strong muscles in the walls of the stomach and gastric juices break down food in your stomach', 'Your stomach moves the food into the intestines to complete digestion', 'The esophagus moves food from the back of your throat to your stomach'] 
Example Output:   No  

Example Input:  ['The sound wave returns to the bat', 'The sound travels in waves, as sound does', 'Bats and other animals produce a high-pitched tone', 'The bat hears the echoed sound', 'Other animals use echolocation in generally similar ways', 'Folds in the bat's ear and adaptations in the bat's brain enable it to determine the size, shape, and position of the other object via the properties of the returned sound waves', 'The sound "bounces" off of a nearby object'] 
Example Output:   No  

Example Input:  ['The carbon dioxide is removed', 'Air is brought in through the mouth', 'Passes through the lungs', 'And into the bronchial tissue', 'The lungs bring the oxygen to the rest of the body.'] 
Example Output:
  No