TASK DEFINITION: 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
PROBLEM:  ['The rock over the years carves through the rock', 'The water comes into contact with the rock below', 'Water from the surface seeps below the soil', 'The space in the rock becomes larger and forms into a cave', 'As more rather rushes through the cave becomes a cavern.'] 

SOLUTION:   No  

PROBLEM:  ['Air enters the lungs through bronchial tubes', 'Blood brings carbon dioxide back to lungs', 'Bronchioles have tiny air sacs called alveoli', 'Air enters bronchioles', 'Oxygen absorbed by small blood vessels', 'Alveoli surrounded by small blood vessels', 'Vessels deliver oxygen to every cell in the body', 'Carbon dioxide released when you exhale.'] 

SOLUTION:   No  

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

SOLUTION:
  Yes