BUR #9226 has been rejected.
create implication grandmother_and_granddaughter -> grandparent_and_grandchild
create implication grandmother_and_grandson -> grandparent_and_grandchild
create implication grandfather_and_granddaughter -> grandparent_and_grandchild
create implication grandfather_and_grandson -> grandparent_and_grandchild
Umbrella tag for these 4 tags.