Gail bought a new cellphone and show it to her classmates. A week later, she came crying to you, asking for your help to find it because it was stolen. During recess time, Faye left her bag open. So, you closed it. Accidentally, you found the cellphone of Gail inside that bag. What would be your presumption? What type of presumption is that? Can it be contradicted by the evidence that Faye may present?

Answer based on legal reasoning or based in law.