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

[EX Q]:  ['Air is pushed through the vocal chords', 'Other air is pushed out of the lungs into the environment.', 'Oxygen moves from the lungs into the bloodstream', 'A person talks', 'Air is pulled into the lungs'] 
[EX A]:   No  

[EX Q]:  ['The sediment can help erode land like sandpaper', 'Waves have energy that pushes the water and sediment', 'Some sediment is left as sand.', 'Water washes the sediment back', 'Waves hit the coast'] 
[EX A]:   No  

[EX Q]:  ['Networks of trees start forming', 'The trees die off', 'The dead material provides nutrients for more trees', 'The rising trees provide shelter', 'And more organisms begin to thrive', 'The ecosystem known as a forest is made.'] 
[EX A]:
  Yes