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 type of coal must be chosen before the heating can start', 'The coal is broken down to a smaller material', 'The coal particles mix with hot air and move in to a boiler', 'Water in the boiler is pumped and produces steam with the coal', 'Steam powers turbine blades, which magnetically charge wire coals', 'The water returns back in to its chamber and the process is repeated'] 

Output:   Yes  


Input: Consider Input:  ['The reflector in the flashlight directs the lamp's beam', 'The flashlight is turned on', 'A circuit is completed between the batteries and the lamp', 'Batteries are put in a flashlight', 'The beam is no longer visible.', 'A straight beam of light is generated', 'The lamp in the flashlight begins to glow', 'Two contact strips touch one another', 'The flashlight is turned off', 'The circuit is broken'] 

Output:   No  


Input: Consider Input:  ['The baby bird begins pecking out of the egg', 'A baby bird forms within the egg if it is fertilized', 'The bird is able to leave the nest and find food', 'An egg is laid by a mother bird', 'The mother bird must feed the baby bird food', 'The bird is able to fly', 'The baby bird is unable to fly to get food', 'The bird is able to reproduce.', 'The bird grows stronger and grows wings'] 


Output:   No