I do understand the question but do you have a JSON-Sample from the trigger? Just create a test entry and from that run you post the complete body of the trigger (run history) here. Maybe this sample helps you to understand. You can use the clipboard to create it in a sample flow:
{"id":"f5c96a06-1ce1-4ef2-afcb-181d933a10c8","brandColor":"#8C3900","connectionReferences":{"shared_sharepointonline":{"connection":{"id":"/providers/Microsoft.PowerApps/apis/shared_sharepointonline/connections/shared-sharepointonl-b959cb53-5ecb-4b41-805f-06e7795a0bd2"}},"shared_commondataserviceforapps":{"connection":{"id":"/providers/Microsoft.PowerApps/apis/shared_commondataserviceforapps/connections/62947705b1a746319ca1e59aae985afc"}}},"connectorDisplayName":"Control","icon":"data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMzIiIGhlaWdodD0iMzIiIHZlcnNpb249IjEuMSIgdmlld0JveD0iMCAwIDMyIDMyIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPg0KIDxwYXRoIGQ9Im0wIDBoMzJ2MzJoLTMyeiIgZmlsbD0iIzhDMzkwMCIvPg0KIDxwYXRoIGQ9Im04IDEwaDE2djEyaC0xNnptMTUgMTF2LTEwaC0xNHYxMHptLTItOHY2aC0xMHYtNnptLTEgNXYtNGgtOHY0eiIgZmlsbD0iI2ZmZiIvPg0KPC9zdmc+DQo=","isTrigger":false,"operationName":"Scope_Transformation","operationDefinition":{"type":"Scope","actions":{"Compose_Sampletext_from_Form":{"type":"Compose","inputs":"I want to update an existing report","runAfter":{}},"Compose_Transformation_Object":{"type":"Compose","inputs":{"I want to create a new report":"create","I want to update an existing report":"update","I want to fix a bug in my report":"fix a bug"},"runAfter":{"Compose_Sampletext_from_Form":["Succeeded"]}},"Extracted_text":{"type":"Compose","inputs":"@coalesce(outputs('Compose_Transformation_Object')?[outputs('Compose_Sampletext_from_Form')], 'ERROR')","runAfter":{"Compose_Transformation_Object":["Succeeded"]}}},"runAfter":{}}}
Of course you won't need step 1 (you already have the data in the trigger) and 3 (just do demonstrate the output) but I hope this helps to understand.
