What does word SISTEMIN means on Turkish language?

the meaning of sistemin is like that.. Sistem : SYSTEM in Englsih..

For example "..the parts of SYSTEM " in this noun phrase " of system : SİSTEM-İN::

you can think here "in" , like "of" in English.. it indicates the possession.. Anyway. becase of my poor English .. i couldn't explain well. i hope it can help you :):)