Related Activity Type 1 Parent An activity that contains sub-activities (sub-components) 2 Child A sub-activity (sub-component) of a larger activity (the parent) 3 Sibling A sub-activity (sub-component) related to another sub-activity of the same parent 4 Co-funded An activity that receives funding from more than one organisation 5 Third Party A report by another organisation on the same activity (excluding activities reported as part of financial transactions - eg. provider-activity-id - or a co-funded activity using code = 4)