Location: [Back to the Lecture Notes] Description of Picture of 1:1c Relationship
In the given picture, A has two instances and B has three. The first instance of A is connected to the first instance of B, the second instance of A is connected to the second instance of B, and no other connections are shown (so that the first two instances of B are each connected to one instance of A, and third instance of B isn't connected to any instances of A at all).
Location: [Back to the Lecture Notes] Description of Picture of 1:1c Relationship