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:  -The bird picks a tree -The bird collects twigs and other refuse -The bird makes a flat base with twigs -The bird makes sides with twigs and other things -The bird adds softer material to the inside -The nest is done.
 Question: What is the effect of less pollution in the environment on there are more trees chopped down.?
[A]: none


[Q]: Process:  -Human industry produces chemical compounds -Chemical compounds rise into the air -Chemical compounds mix with elements in clouds -The affected rain falls to the earth -The affected rain can harm natural and man-made objects because of its acidic content.
 Question: What is the effect of more chemical compounds produced on fewer chemical compound mixes.?
[A]: against


[Q]: Process:  -The human body takes a breath inward -Air is transported to the lungs -Air reaches the alveoli, the smallest air sacs in the lungs -In the alveoli, air passes into the blood within small capillaries -The gaseous oxygen in the air dissolves into the capillary blood -The dissolved oxygen is picked-up by red blood cells -The red blood cells bind the oxygen via a protein called heme -Red blood cells circulate throughout the body and reach the various tissues -Within small capillaries, the heme release the oxygen -The oxygen can then reach the cells within the tissue -
 Question: What is the effect of "less oxygen being brought to the bodys cells" on "less oxygen being brought to the bodys cells".?
[A]:
for