<tool id="get_parent_terms_by_relationship_type" name="Get the terms of a given OBO term through a concrete relationship type" version="1.22">
  <description>Collects the terms from a given term in the given OBO ontology, filtered by a relationship type</description>
  <command interpreter="perl">/usr/bin/get_parent_terms_by_relationship_type.pl $input_ontology $term_id $rel_id > $output</command>
  <inputs>
    <param format="text" name="input_ontology" type="data" label="Source file"/>
    <param name="term_id" type="text" size="30" value="" label="Term ID" />
    <param name="rel_id" type="text" size="30" value="" label="Rel ID" />
  </inputs>
  <outputs>
    <data format="tabular" name="output" />
  </outputs>

  <tests>
    <test>
      <param name="input" value="pre_cco.obo"/>
      <param name="term_id" value="CCO:B0000073"/>
      <param name="rel_id" value="participates_in"/>
      <output name="out_file" file="ancestors_rel_filtered.txt"/>
    </test>
  </tests>

  <help>

.. class:: infomark

Collects the terms (list of IDs) from a given term (existing ID) through a given relationship type in the given OBO ontology.
**Example**

id: A 
name: A
A part_of B
A part_of D
A participates_in F

Que me devuelva los padres de A along part_of, es decir B y D. 

If you ask for the parent terms of **A** along along part_of you will get::

  B
  D

**More information**

  ONTO-PERL: An API supporting the development and analysis of bio-ontologies
  E. Antezana; M. Egana; B. De Baets; M. Kuiper; V. Mironov
  Bioinformatics 2008; doi: 10.1093/bioinformatics/btn042

  </help>

</tool>