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:  ['A bird lays an egg', 'The egg hatches into a baby bird', 'Baby bird eats', 'Grows into an adult bird', 'The bird finds a mate', 'The pair build a nest', 'The birds lay eggs.'] 

Output:   Yes  


Input: Consider Input:  ['Carbon dioxide enters the leaves through the stomates by diffusion', 'Water is transported to the leaves in the xylem', 'Energy harvested through light reaction is stored by forming ATP', 'Carbon dioxide and energy from ATP are used to create sugar', 'Oxygen exits the leaves through the stomata by diffusion', 'The plant reuses the water or the water exits through the stomata as water vapor.'] 

Output:   Yes  


Input: Consider Input:  ['The seismic waves move the earth in an earthquake.', 'The cracks get very long and big in some places', 'The energy causes seismic waves', 'The earth moves against itself on both sides of the cracks', 'The pressure causes the rocks to press against each other very hard', 'The pressure and movement around the cracks causes the rocks to crumble in some places', 'The earth places pressure against the rocks on both sides of the cracks', 'The cracks continue to develop', 'A lot of energy is released', 'The earth develops cracks deep beneath the surface'] 


Output:   No  


