text: Karolina: I'm at the museum
  Joy: oops sorry  i wanted to send you a message and not to give you a call
  Karolina: No problem
  Joy: Just to check your mobile number, is it a french one, isn't it? I give it to Vicky.
  Karolina: Yes but i'm on WhatsApp if she needs, and i've got her number anyway.
target: Karolina is at the museum. Joy gave Karolina's number to Vicky. Karolina is available on WhatsApp.