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:  ['And the force of gravity acts to move the particles along the sloping surface on which they are resting', 'The fluid is air, water, or ice', 'Sediment transport occurs in natural systems where the particles are clastic rocks (sand, gravel, boulders, etc.), mud, or clay', 'Sediment transport due to fluid motion occurs in rivers, oceans, lakes, seas, and other bodies of water due to currents and tides', 'Sediment transport is the movement of solid particles (sediment)', 'Transport is also caused by glaciers as they flow', 'The movement is due to a combination of gravity acting on the sediment, and/or the movement of the fluid in which the sediment is entrained'] 
Example Output:   No  

Example Input:  ['The gravity of the sun pulls its mass inward', 'There is a lot of pressure on the Sun', 'The pressure forces atoms of hydrogen to fuse together in nuclear reactions', 'The energy from the reactions gives off different kinds of light', 'The light travels to the Earth.'] 
Example Output:
  Yes