The value of a used car depends on its age.
Avalue(car), or v(
C
Bvalue(age), or v(
A
Ccar(age), or c(
A
Dage(car), or a(
C
Avalue(car), or v(
C
Bvalue(age), or v(
A
Ccar(age), or c(
A
Dage(car), or a(
C