Collects the ancestor terms (list of IDs) from a given term (existing ID) in the given OBO ontology.

Example

If you ask for the descendents of the Gene Ontology term with ID GO:000800 you will get:

GO:0043229    intracellular organelle
GO:0043232    intracellular non-membrane-bounded organelle
GO:0044446    intracellular organelle part
GO:0044424    intracellular part
GO:0005623    cell
GO:0044422    organelle part
GO:0043228    non-membrane-bounded organelle
GO:0044427    chromosomal part
GO:0005575    cellular_component
GO:0000793    condensed chromosome
GO:0043231    intracellular membrane-bounded organelle
GO:0043226    organelle
GO:0005634    nucleus
GO:0044464    cell part
GO:0005622    intracellular
GO:0044454    nuclear chromosome part
GO:0005694    chromosome
GO:0000228    nuclear chromosome
GO:0043227    membrane-bounded organelle
GO:0000794    condensed nuclear chromosome
GO:0000795    synaptonemal complex
GO:0044428    nuclear part