PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • I have heard of this before and it can be linked to something or other during birth or pregnancy but not that the mother did, more ike an illness, maybe a mild illness or something, which kind of interrupts that part of foetal development.Sorry I am not more use, it is been posted about on here before when someone's child had brown bits on their teeth.
http://www.w3.org/ns/prov#wasQuotedFrom
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