What's the backend database?

>I'm missing the syntax error in the following statement. Could one of the more experienced SQLers point to where I've wandered off the beaten path?

>SELECT
>    Account."ID", Account."BOB_ID", Account."Profile_ID",
>    Account_Contact."Contact_ID", Account_Contact."Account_ID", Account_Contact."Type",
>    Household."Household_ID",
>    Contact."Contact_ID", Contact."First_Name", Contact."Relationship",
>    Profile_Member."Owning_Profile_ID", Profile_Member."Member_Profile_ID"
>FROM
>    { oj ((("wcc"."Account" Account INNER JOIN "wcc"."Household" Household ON
>        Account."Profile_ID" = Household."Household_ID")
>     INNER JOIN "wcc"."Account_Contact" Account_Contact ON
>        Account."ID" = Account_Contact."Account_ID")
>     INNER JOIN "wcc"."Profile_Member" Profile_Member ON
>        Household."Household_ID" = Profile_Member."Member_Profile_ID")
>     INNER JOIN "wcc"."Contact" Contact ON
>        Account_Contact."Contact_ID" = Contact."Contact_ID"}