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28 changes: 1 addition & 27 deletions principles/fp-001-open.md
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Expand Up @@ -61,8 +61,7 @@ The attribution method for individual terms reused in another ontology (e.g., by
1. **In OWL** - Any ontology re-using individual terms from another ontology should:

1. re-use the original term IRI (which for OBO Foundry ontologies is generally in the form of an OBO Foundry PURL)
2. use an IAO:imported from annotation <http://purl.obolibrary.org/obo/IAO_0000412> on each imported term to link back to the group (i.e. ontology) maintaining it, where more information would be available about the license
3. include any annotations for term or definition editors from the original ontology
2. include any annotations for term or definition editors from the original ontology

2. **In OBO** - Any ontology re-using individual terms from another ontology should:
1. re-use the original term ID (of the form <GO:0000001>)
Expand Down Expand Up @@ -124,31 +123,6 @@ The first course of action should be to reuse the external term as is, by import

Please see the discussion tab for additional discussion of how to use different annotation properties to credit external ontologies or definition sources.

#### Example 3A: IAO:imported from

The Ontology for Biomedical Investigation (OBI) imports the class "environmental material" from the Environment Ontology (ENVO), using OntoFox. The imported from axiom is automatically generated by Ontofox and added to "environmental material" in OBI:

```
<!-- <http://purl.obolibrary.org/obo/ENVO_00010483> -->
<owl:Class rdf:about="&obo;ENVO_00010483">
<rdfs:label rdf:datatype="&xsd;string">environmental
material</rdfs:label>
<rdfs:subClassOf rdf:resource="&obo;BFO_0000040"/>
<obo:IAO_0000115 rdf:datatype="&xsd;string">Material in or on which
organisms may live.</obo:IAO_0000115>
<obo:IAO_0000111 rdf:datatype="&xsd;string">environmental
material</obo:IAO_0000111>
<obo:IAO_0000412 rdf:resource="&obo;envo.owl"/>
</owl:Class>
```

## Counter-Examples

- An ontology with no license statement is by default subject to the most restrictive copyright laws for those parts of the ontology that are copyrightable, and therefore is not useful within the OBO Foundry.
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