An ancestor is a parent or -LRB- recursively -RRB- the parent of an ancestor -LRB- i.e. , a grandparent , great-grandparent , great-great-grandparent , and so forth -RRB- .

An ancestor is a parent , a parent 's parent -LRB- grandparent -RRB- , a parent 's parent 's parent -LRB- or great grandparent -RRB- , and so on .
