| http://www.w3.org/ns/prov#value | - This could be either due to manual input from the persons A1, A2 or A3, manual input from a venue attendant, from the presence of A1, A2 and A3 in the same reference image, from comparing the residence or other information relating to A1, A2, and A3, from the similar time or registration of A1, A2 or A3, or through other means.
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