How to crack hasches in a List, second collum

[SmnFz]

If you have a list, and the list contains 2 columns how to crack hashes in the second column (the right one)?

in this example, the haschlist.txt contains 2 columns, separated by a ":" and we want to crack second column in the file, and we want to save the result in a result file.

i guess its somewhere along this lines, but whats missing for oclHaschcat to choose second column in haschlist.txt
oclHashcat32.exe -m 0 haschlist.txt -o result_file.txt passwordfile.txt