IN: The traditional American business hours are 9:00 a.m. to 5:00 p.m., Monday to Friday, representing a workweek of five eight-hour days comprising 40 hours in total. These are the origin of the phrase 9-to-5, used to describe a conventional and possibly tedious job. Negatively used, it connotes a tedious or unremarkable occupation. The phrase also indicates that a person is an employee, usually in a large company, rather than and entrepreneur or self-employed. More neutrally, it connotes a job with stable hours and low career risk, but still a position of subordinate employment. The actual time at work often varies between 35 and 48 hours in practice due to the inclusion, or lack of inclusion, of breaks. In many traditional white collar positions, employees were required to be in the office during these hours to take orders from the bosses, hence the relationship between this phrase and subordination. Workplace hours have become more flexible, but the phrase is still commonly used.
is 9-5 a 40 hour week?

OPTIONS:
- no
- yes

OUT: yes

IN: Fifty Shades is an American film series that consists of three erotic romantic drama films, based on the Fifty Shades trilogy by English author E.L. James. It is distributed by Universal Studios and stars Dakota Johnson and Jamie Dornan as the lead roles Anastasia Steele and Christian Grey, respectively. Sam Taylor-Johnson directed the first film and initially she was slated to be the director of the sequels as well, however subsequently the second and third films were directed by James Foley.
is there 3 fifty shades of grey movies?

OPTIONS:
- no
- yes

OUT: yes

IN: Water intoxication, also known as water poisoning, hyperhydration, or water toxemia is a potentially fatal disturbance in brain functions that results when the normal balance of electrolytes in the body is pushed outside safe limits by overhydration (excessive water intake).
can we die by drinking too much water?

OPTIONS:
- no
- yes

OUT: yes

IN: A square matrix that is not invertible is called singular or degenerate. A square matrix is singular if and only if its determinant is 0. Singular matrices are rare in the sense that a square matrix randomly selected from a continuous uniform distribution on its entries will almost never be singular.
does a square matrix always have an inverse?

OPTIONS:
- no
- yes

OUT:
no