has_specified_input is_specified_output_of has value specification duration since bed net treatment categorical duration since bed net treatment https://github.com/VEuPathDB-ontology/VEuPathDB-ontology/issues/445 Sheena Tomko VEuPathDB Time since last personal bednet treatment categorization A data item that specifies which group a value for 'duration since bed net treatment' belongs to when the data are grouped by range of values. ClinEpiDB John Judkins ORCID:0000-0001-6595-0902 data item categorical value specification data transformation