sparql use subquery as result/variable for outer query -

i want use result of nested query variable/sub graph outer query. use-case have one-to-many relation between product , offers, , want all/selected products offers count, minprice , condition offer record. here query

select ?productid ?pricemin ?total ?condition {   {     select ?productid (count(?cond) ?total) (min(?pr) ?pricemin )  ?condition where{       ?productid ^mod:isofferof ?oid.       ?oid dprop:pricemin ?pr.        ?oid dprop:total ?cond.       bind (if( ?cond = 1, "new", "used") ?condition).     }   }   values ?productid { prod:rl5rvl5r prod:rl5rvl5q prod:rl5rvl5w prod:rl5rvl5y prod:rl5rvl5u } } 

and getting data.

   productid      |pricemin |condition |total product:rl5rvl5r  | 3267    |  used    | 1 product:rl5rvl5r  | 3216    |  new     | 4 product:rl5rvl5y  | 327     |  new     | 1 product:rl5rvl5q  | 323     |  new     | 1 product:rl5rvl5q  | 3268    |  used    | 1 product:rl5rvl5w  | 326     |  new     | 1 product:rl5rvl5w  | 3271    |  used    | 4 product:rl5rvl5u  | 325     |  new     | 2 product:rl5rvl5u  | 3270    |  used    | 1 

now want assign value like

product:rl5rvl5u dprop:newtotal ?total product:rl5rvl5u dprop:newmin ?pricemin product:rl5rvl5u dprop:usedtotal ?total product:rl5rvl5u dprop:usedmin ?pricemin