def recomb_tag_1(testapp, lab, award, target, treatment_5, document):
    item = {
        'lab': lab['@id'],
        'award': award['@id'],
        'category': 'insertion',
        'purpose': 'tagging',
        'method': 'site-specific recombination',
        'modified_site_by_target_id': target['@id'],
        'modified_site_nonspecific': 'random',
        'category': 'insertion',
        'treatments': [treatment_5['@id']],
        'documents': [document['@id']],
        'introduced_tags': [{'name': 'eGFP', 'location': 'C-terminal'}]
    }
    return testapp.post_json('/genetic_modification', item).json['@graph'][0]