if else if else clause in prolog similar to C/C++

Question

In c language i have something like :

if(cond1)
{}
else if(cond2)
{}
else
{}

how is this possible in Prolog?

Answer 1

(cond1 ->
    consequent1
; cond2 ->
    consequent2
;
    alternative
)

For the record, this is called a conditional.