Contexts (non-location) in Reminders Capture?

Is there a way to attach a context to a reminder such that OmniFocus recognizes and applies it when capturing it from the iOS Reminders app?

I use Windows at work, and get tasks into OF by creating tasks in Outlook that sync with iCloud Reminders, which then are captured by the OmniFocus app in iOS. The bulk of these are “Waiting For” tasks created by a rule when I send an email. I end up spending a lot of time in the OF app adding contexts to each of these tasks.

Is there a way to add a context automatically?

capture from other apps/devices would be made much more efficient if OF could parse tasks using something like the taskpaper syntax.