ZKC ARTCC CTLR NEARLY LOST SEPARATION BTWN A BE10 AND AN AC50 BECAUSE HE WAS UNFAMILIAR WITH ROUTING IDENTS.

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I TOOK OVER SECTOR 66 AND IN THE BRIEFING WAS TOLD THE BE10 WAS CLRED TO 9000 FT GOING TO SPRINGFIELD. THE FLT PLAN SAID SLN SGW 3V3. SINCE I DID NOT KNOW WHERE SGW WAS; I ASSUMED SGW WAS IN SPRINGFIELD SOMEWHERE THAT I DID NOT KNOW (SPRINGFIELD IS THE MOST POPULAR CITY NAME IN THE UNITED STATES OF AMERICA). I DEPARTED THE AC50 AND THE RTE READOUT STATED THE AC50 WOULD GO W. THE AC50 CALLED VFR OFF SLN AND I STATED HE WOULD HAVE TO WAIT UNTIL 5 MI E TO GET A CLRNC. THE BE10 CALLED AIRBORNE AND I ASKED IF HE WAS TURNING R ON COURSE. HE SAID YES. THE AC50 CALLED E AND I CLRED HIM TO MKC. THE XPONDER CODE POPPED UP ON THE BE10 2 MI BEHIND THE AC50 AT THE SAME ALT; CLBING. I STOPPED THE AC50 CLB LETTING THE BE10 CLB ABOVE HIM. CONFLICT ALERT NEVER WENT OFF. I ASKED THE BE10 ABOUT TURNING R ON COURSE WHICH WOULD BE W AND HE SAID I TURNED R ON COURSE (MEANING STRAIGHT ON COURSE E). FSS HAD MISTYPED THE IDENT FOR SPRINGFIELD; MO (SGF) WHICH IS E OF SALINA; KS. THIS TYPO CAUSED THE START OF THE PROB.