how to execute Sql Raw Query in Microsoft Entity Model Framework

I'm using Microsoft Entity model framework to access my database. I get an issue while i use this execute query command for executing Sql raw query. Let me know how could i resolve it.

svdc.CreateQuery<VideoMasterTable>(
    "select * from videomastertable WHERE FREETEXT(*, '"+keyword+"')"
    ).ToList();

Thanks in Advance,

Kanal