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:  ['Insects and other wildlife die', 'The water runs off from the soil into lakes, streams, etc', 'Fish and their eggs die', 'Acid rain makes waters acidic', 'The ecosystem is out of balance, causing further problems', 'Causes them to absorb aluminum from soil', 'Frogs and plants die'] 
Example Output:   No  

Example Input:  ['The lighter items float on the top and in convection cycles', 'Sediment becomes loose from the rest of the soil', 'The sediment gets dumped through tributaries into lakes and the ocean', 'The sediment keeps moving around the world in convection currents.', 'The heavy items sink to the bottom', 'The sediment rolls down hill towards a river', 'As the river flows the sediment is moved'] 
Example Output:   No  

Example Input:  ['The absorbed sunlight is converted to heat', 'The plants and floor absorb the the sunlight', 'The colder air at the top is pushed to the bottom', 'The hot air rises', 'The colder air is then warmed by the floor and the plants.', 'The heat is trapped in the greenhouse', 'Sunlight passes through the glass into the greenhouse', 'The heat cannot escape the glass'] 
Example Output:
  No