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:  -He air we breathe contains oxygen and other gases -Once in the lungs, oxygen is moved into the bloodstream and carried through your body -At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide -Your bloodstream then carries this waste gas back to the lungs where it is removed from the blood stream and then exhaled -Your lungs and respiratory system automatically perform this vital process, called gas exchange -
 Question: What is the effect of more polluted waterways on a greater amount of oxygen being delivered to the blood stream.?
[A]: none


[Q]: Process:  -The air is cold -Water is in the air -The water forms tiny ice crystals -The ice crystals collide with each other -The ice crystals stick to each other -The ice crystals get bigger as more of them stick together -The ice crystals get too heavy to be in the air -The ice crystals become snowflakes -The snow flakes fall to the ground as snow.
 Question: What is the effect of it begins to get warmer on the snow becomes less.?
[A]: for


[Q]: Process:  -The saliva breaks down the chemicals in the food a bit, which helps make the food mushy and easy to swallow -Your tongue helps out, pushing the food around while you chew with your teeth -The esophagus moves food from the back of your throat to your stomach -Strong muscles in the walls of the stomach and gastric juices break down food in your stomach -Your stomach moves the food into the intestines to complete digestion -
 Question: What is the effect of during mealtime on more protein breakdown.?
[A]:
for