You are given a sentence and your task is to generate another sentence that supports the given input.
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Question: At pH values below 7 we have excess acid, and at pH levels above 7 we have excess base in the water.

Answer: If a substance has a ph value greater than 7,that indicates that it is base.


Question: Although color is the most obvious property of a mineral, it is the least reliable diagnostic physical property.

Answer: Although it is the easiest to observe, color is not ideal as a sole way to identify minerals.


Question: Alternatively, mycoplasma surface components ('superantigens') may directly stimulate autoimmune responses,(38) or their molecular mimicry of host antigens may explain, in part, their ability to stimulate autoimmunity.

Answer:
Autoimmunity can develop with time, and its causes may be rooted in this molecular mimicry.