| http://www.w3.org/ns/prov#value | - This means that if you want to know whether their behaviour is affected by something you are particularly interested in, such as whether they are alone or in a group, you have to design your observations in such a way that you can infer that it is their social environment that is causing the effect and not just that they are having a bad hair day or that they have just been disturbed by the sound
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