A nurse in a blue shirt and a purple shirt talking .
It is unlikely that a nurse in a blue shirt is talking about a patient to another nurse wearing a purple shirt .
There is a very good chance that a nurse in a blue shirt is talking about a patient to another nurse wearing a purple shirt .
It is unlikely that a nurse in a blue shirt is talking about a patient to another nurse wearing a purple shirt .
A nurse in a blue shirt is talking about a patient to another nurse wearing a purple shirt .