What is the correct representation for a message recipient?

[chrishargreaves]

I'm currently modelling output from chat applications:

There seems to be:
observable:sender

but there isn't
observable:recipient

or any synonyms as far as I can tell?

(I'm searching Entities A-Z btw)

I could use:

• observable:phoneNumber
• observable:emailAddress

but the asymmetry of sender but not recipient seems odd?

[ajnelson-nist]

My recollection is this model was built around multi-party threads, chat-channels, or social media streams, not direct-messaging. So in the context of a direct-messaging discussion, the "recipient" would be whoever wasn't the "sender" in the two-party channel.

[chrishargreaves]

Ah ok. So you only really get stuck when trying to represent a single sent message and need to build a 'conversation' or thread with the participants and inverse the sender.