, P (x)
(x) Q ,

A
a ( b ) c

B ( a ) b
a ( b ) C

D ( a
b ) c

a ( b
c ) E

a ( b
F ( ) c
d ) e

a ( b
c ( ) G
d ) e

a ( b ) H ( c ) d

a ( b ) c
I " this must be the last pair test

J
a 'b' c

K 'a' b
a 'b' L

a ' b
M ' c
d ' e

a ' b
c ' N
d ' e

a ' b ' c
O " this must be the last quote test