Given a list of steps and an additional step, determine where the step fits into the original list of steps. A correct answer, correctly places the given step into the set of steps so that it creates a new plausible set of steps. Output must be formatted as 'After step n', where n is the step number after which the given additional step is to be inserted.
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Question: Steps: (1) The pollution negatively affects the water quality (2) The pollution negatively affects the health of plants and animals (3) The plants and animals have shorter, less healthy lives (4) The plants and animals do not reproduce very well (5) The number of plants and animals decreases over time (6) The quality of water gets worse and worse as there are no plants or animals to clean it (7) Eventually there is nothing living in the water and it is unusable
Where does the following step fit into the given list of steps: Pollution enters natural water sources such as rivers and lakes

Answer: Before step 1.

Question: Steps: (1) In this stage the chromosomes become visible and the centrioles separate and move to opposite poles of the cell (2) In prophase the chromosomes become visible and the centrioles separate and move to opposite poles of the cell (3) In metaphase the chromosomes line up across the center of the cell and become connected to the spindle fiber at their centromere (4) In anaphase the sister chromatids separate into individual chromosomes and are pulled apart (5) During telophase the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes (6) Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.
Where does the following step fit into the given list of steps: Prophase is the first and longest stage of mitosis

Answer: Before step 1.

Question: Steps: (1) The saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow (2) Your tongue helps out, pushing the food around while you chew with your teeth (3) The esophagus moves food from the back of your throat to your stomach (4) Strong muscles in the walls of the stomach and gastric juices break down food in your stomach
Where does the following step fit into the given list of steps: Your stomach moves the food into the intestines to complete digestion

Answer:
After step 4.