| http://www.w3.org/ns/prov#value | - here is a risk of missing some conditions.Every astronomical object body that we have observed moves consistently with the Law of Gravity.Every test on Earth is consistent with it.It allows us to predict the path of our satellites and other space-craft.That is all that is logically required to treat it as a sufficiently accurate model of reality to rely on, until we find something behaving in a ma
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