1-6.7 Marital status.
The marital status is always conditional on the value of relationship.
In the case of birth date and place propagation, where the relationship is "self," there is a rule for
each possible status: "generic," "single," "married," "divorced," "widowed," "unknown," etc. In the
case of marriage date and place propagation (in the P-family of P1), the status must be "married."
