How to compare a value with a list of value

Essentially, I try to do the following:

I have three columns with words. i.e:

     A            b            C
('soldier'=   ('help=      ('help'=4)     
('weapons'=   ('freedom=   ('freedom'=3)
('freedom=    ('weapons'=  ('weapons'=2)
('help=       ('soldier'=  ('soldier'= 1)

What I try to do is to find a formula that if a word from list is identical with a word from list b, then the word with the numeric value of list c should appear. Is there anybody who could help me with that?