Something is s.t. (it is a reason for everything)
∃x ∀y Rxy
R
1
2
3
4
5
1
T
T
T
T
T
2
F
F
T
F
T
3
F
T
F
F
F
4
F
F
F
F
F
5
F
T
F
T
F
①
②
③
④
⑤