pl 

access (TActivity)

pl 

actor (TActivity)

pl 

address (TActivity)

pl 

annotation (TActivity)

pl 

crosspostSource (TActivity)

pl 

etag (TActivity)

pl 

geocode (TActivity)

pl 

id (TActivity)

pl 

kind (TActivity)

pl 

location (TActivity)

pl 

placeId (TActivity)

pl 

placeName (TActivity)

pl 

provider (TActivity)

pl 

radius (TActivity)

pl 

title (TActivity)

pl 

updated (TActivity)

pl 

url (TActivity)

pl 

verb (TActivity)

pl 

_object (TActivity)

pl 

_published (TActivity)