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

Input: Consider Input:  ['The person boards the plane', 'The luggage is checked', 'The passenger gets off the plane at their destination.', 'The passenger gets in line when it's time to board', 'An airline reservation is made', 'The passenger goes to their gate', 'The plane arrives at the destination', 'The passenger shows their identification and gets a boarding pass', 'The passenger arrives early at the airport', 'The passenger waits in line'] 

Output:   No  


Input: Consider Input:  ['Clouds rain over an area', 'People burn coal for heat or electricity', 'Pollution from the coal goes into the sky', 'Coal pollution enters clouds', 'People dig up coal from the ground', 'The polluted rain becomes acid rain.'] 

Output:   No  


Input: Consider Input:  ['Sediment is carried to an area by the wind, water, air, or ice', 'The sediment becomes sedimentary rock as it is pushed together by the heavy weight', 'The sediment near the bottom is compressed by the weight of newer sediment', 'The sediment piles on top of other sediment for a long time', 'Wind and water erode rocks', 'Sediment is deposited on the same spot many times', 'The wind and water pick up sediment that came off the rocks'] 


Output:   No