SQL Error: ORA-00923: FROM keyword not found where expected

ora 923ERROR: ORA-00923: FROM keyword not found where expected. How may I fix this. Thanks in Advance! still i got the error. specify the table. Instead of *, use brand.*, PRDUCT.*,ORA-00923: FROM keyword not found where expected SQL: SELECT DISTINCT B10.EMPLID from PS_BEN_PROG_PARTIC a10, PS_EMPLOYEES b10,