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:  ['Minerals fill spaces between bits of sediment', 'The sediments become glued together', 'The glued together parts become hard like cement', 'The sediment becomes a big rock', 'The rocks erode slowly', 'The rocks come apart', 'The rocks become smaller rocks', 'The rocks continue to erode into smaller rocks', 'The process starts again.'] 
Example Output:   Yes  

Example Input:  ['The new copies of the virus leave the cell', 'The virus has receptors that lock onto a target cell', 'Infect other cells', 'The host gets sick as its cells are damaged.', 'The virus uses the cell like a factory to make new copies of the virus', 'A virus enters a host body', 'The virus enters the cell'] 
Example Output:   No  

Example Input:  ['Fuel mixes with air', 'Mix gets inducted into cylinder', 'Piston compresses the mix', 'Spark plug emits a spark that ignites it causing combustion', 'Combustion gases expand', 'Pushes piston during power stroke', 'Exhaust valve opens to vent exhaust out tail pipe.'] 
Example Output:
  Yes