Error While Trying To Get Predictions From Relational DB

I am trying to get predictions and insert them into a DB table.

Following is the code I am using , but I am getting an error saying

'

An error occurred while preparing the query

,

Pl. help.

begin

declare @v_query varchar(5000);
declare @full_query varchar(5000);
declare @v_dbquery varchar (200);

set @v_dbquery = char(39)+'SELECT
[ProspectAlternateKey],
[FirstName],
[LastName],
[MaritalStatus],
[Gender],
[YearlyIncome],
[TotalChildren],
[NumberChildrenAtHome],
[HouseOwnerFlag],
[NumberCarsOwned]
FROM
[dbo].[ProspectiveBuyer]'+char(39);

set @v_query = 'SELECT
[TM_Cluster].[Bike Buyer],
t.[ProspectAlternateKey],
PredictProbability([TM_Cluster].[Bike Buyer])
From
[TM_Cluster]
PREDICTION JOIN
OPENQUERY([Adventure Works DW],@v_dbquery) AS t
ON
[TM_Cluster].[Marital Status] = t.[MaritalStatus] AND
[TM_Cluster].[Gender] = t.[Gender] AND
[TM_Cluster].[Yearly Income] = t.[YearlyIncome] AND
[TM_Cluster].[Total Children] = t.[TotalChildren] AND
[TM_Cluster].[Number Children At Home] = t.[NumberChildrenAtHome] AND
[TM_Cluster].[House Owner Flag] = t.[HouseOwnerFlag] AND
[TM_Cluster].[Number Cars Owned] = t.[NumberCarsOwned]'
-- print @v_query

set @full_query = 'select * from openquery (DMserver,'+char(39)+ @v_query +char(39)+')' ;

print @full_query;

EXEC (@full_query);


end