--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/onto-toolkit/tools/ontology/get_terms_by_relationship_type.xml	Wed Apr 11 10:33:41 2012 +0200
@@ -0,0 +1,45 @@
+<tool id="get_terms_by_relationship_type" name="Get the terms that are related by a concrete relationship type" version="1.22">
+  <description>Collects the terms that are related by a concrete relationship type</description>
+  <command interpreter="perl">/usr/bin/get_terms_by_relationship_type.pl $input_ontology $rel_id > $output</command>
+  <inputs>
+    <param format="text" name="input_ontology" type="data" label="Source file"/>
+    <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="rel_id" value="participates_in"/>
+      <output name="out_file" file="terms_rel_filtered.txt"/>
+    </test>
+  </tests>
+
+  <help>
+
+.. class:: infomark
+
+Collects the terms that are related by a concrete relationship type (e.g. is_a)
+
+**Example**
+
+If you ask for terms related by the relationship type 'participates_in' you will get tab delimited records like::
+
+  PR:0000001	participates_in	GO:0000023
+  PR:0000002	participates_in	GO:0033224
+  PR:0000003	participates_in	GO:0021109
+  PR:0000004	participates_in	GO:0034099
+  ...
+  ...
+  
+**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>
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