In this task you will be given a process, and a question. The process contains a sequence of steps that happen in order. The question asks about the effect of a certain event on another event. If the first event has a positive effect on the second event, answer with "for", if it has a negative effect, answer with "against". If there's no causal relationship between the two, answer with "none".

Q: Process:  -Coal is burned -Sulfur in the coal combines with oxygen to form sulfur oxides -The sulfur oxides are released into the atmosphere -The sulfides combine with oxygen in the atmosphere to form sulfur trioxide -The sulfur trioxide reacts with water in the atmosphere to form sulfuric acid, a very strong acid -The sulfuric acid makes the rain acidic -
 Question: What is the effect of you have less exposure to disease on less sulfur trioxide forms.?

A: none
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Q: Process:  -A bird picks a spot high spot, often in a tree -The bird collects bits of sticks and grass -The sticks and grasses are placed between support branches -Leaves, mud and spider webs are added to the sticks -The mud, leaves and webs glue the sticks together -The solid nest supports the eggs -
 Question: What is the effect of the bird just found a nest on less or smaller nests.?

A: against
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Q: Process:  -Cells obtain glucose and oxygen -The glucose and oxygen create carbon dioxide -The cells release energy -The cells don't have enough oxygen to repeat this -The cells obtain more oxygen from the air -The cells repeat this process.
 Question: What is the effect of the cells obtain oxygen on less oxygen reaching the body.?

A:
against
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