assertion retraction graph subject predicate object datatype annotation 1 0 graph ONTIE:0003308 rdfs:subClassOf BFO:0000015 _IRI 1 0 graph ONTIE:0003308 rdf:type owl:Class _IRI 1 0 graph ONTIE:0003308 rdfs:label environmental exposure to endemic/ubiquitous agent without evidence for disease xsd:string 1 0 graph ONTIE:0003308 IAO:0000234 IEDB xsd:string 1 0 graph ONTIE:0003308 IAO:0000115 A process in which an organism's exposure to a material entity is assumed from that material being commonly present in the environment of the organism. xsd:string 1 0 graph ONTIE:0003308 IAO:0000112 Exposure of a human to Timothy grass pollen in an area where it is known to be common during pollen season without experiencing any allergic symptoms. xsd:string