Question: Why does Sarah think they haven't found Iris? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: The Ward Context: In rural Oregon, at the North Bend Psychiatric Hospital in 1966, a young patient named Tammy is attacked and killed by an unseen force during the night. Kristen (Amber Heard), a troubled young woman, sets fire to an abandoned farmhouse and shortly thereafter is arrested. The local police take her to North Bend where she meets the other patients in the ward: artistic Iris (Lyndsy Fonseca), seductive Sarah (Danielle Panabaker), wild Emily (Mamie Gummer), and child-like Zoey (Laura-Leigh). Kristen is taken to a room, which the other girls inform her was previously occupied by their friend, Tammy. Kristen also meets her therapist, Dr. Stringer (Jared Harris). She is unable to recall anything about her past. Later, she awakens in the middle of the night and sees a horribly deformed figure staring at her. While she is with Iris and Emily, Kristen sees two people looking at her from Dr. Stringer's office, but the girls give no clue as to who they are. While taking a shower, Kristen is attacked by the deformed figure, but upon telling the nurse this, she is drugged and put through intense electroshock therapy. During a session with Dr. Stringer, Iris mentions Tammy but is then immediately halted by the doctor. In a therapy session, Dr. Stringer uses hypnotherapy to unlock Iris' hidden memories. After the session, Iris is killed by transorbital lobotomy by the deformed figure. Kristen tries to discover what happened to her friend. In Iris's sketchbook, she finds a sketch of the figure that had attacked her, with the name Alice Hudson, a former patient at the hospital, written on top. That night, despite Sarah and Zoey's warning that it is nearly impossible to leave, Kristen and Emily attempt to find Iris and escape. However, the alarm is triggered. Kristen is thwarted by Alice and is rendered unconscious. She reawakens in her room, and it is revealed that Emily was caught. On her way to an appointment with Dr. Stringer, Sarah flirts with a nurse but is rejected. She goes to the other girls and asks Kristen what...
A:
they were not looking into the right places