Camille: Are we seeing each other tonight?
Bill: yes, of course
Bill: it's Claudia's birthday
Camille: right, I forgot
Jerome: Do we have a present?
Mike: I'm collecting money from her university friends 
Mike: so I think you can join it
Jerome: how much do they chip in?
Mike: $15 each
Camille: Can I give you the money tonight?
Mike: sure, but I need to know how many people want to participate, so I would know what we can afford
Jerome: I will
Bill: me too
Camille: and me of course
Jerome: great, I want to buy her a ticket for a concert of radiohead, she loves them
Camille: brilliant idea!
Camille, Bill, Jerome and Mike and some Claudia's university friends are collecting money $15 each for Claudia's birthday. They may buy her Radiohead's concert ticket.