A girl is adding a vial of blue liquid to a glass container , while another girl looks on .
It is probably the case that a girl is adding a vial of light blue liquid to a container .
It is probably the case that a girl is adding a vial of light blue liquid to a container .
It is improbable that a girl is adding a vial of light blue liquid to a container .
A girl is adding a vial of light blue liquid to a container .