How to output boolean to a query in in Access 2010

I have a table with boolean fields

[ItemID] as  text
[Qty] as number
[InStock] as boolean
[Call_Back] as boolean

How do I build a query to show how many times the Item is in stock and not in stock. I want to put these results 1 after the other in the query. Thanks
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Rey Obrero (Capricorn1)Commented:
try this query

select itemid, sum(iif([instock]=-1,1,0)) as [In Stock] , sum(iif([instock]=0,1,0)) as [Not In Stock]
from tablex
group by itemid
thao-nhiAuthor Commented:
I  got an error message " Duplicate output alias as Order_Placed" when run the query as below

SELECT [PRODUCT INQUIRY].Part_ID, sum(iif([Order_Placed]=-1,1,0)) as [Order_Placed], sum(iif([Order_Placed]=0,1,0)) as [Order_Placed]
thao-nhiAuthor Commented:
error message
Circular reference caused by alias Order_Placed in query definitions' select list

SELECT [PRODUCT INQUIRY].Part_ID, sum(iif([Order_Placed]=-1,1,0)) as [Order_Placed], sum(iif([Order_Placed]=0,1,0)) as [NO Order_Placed]
Rey Obrero (Capricorn1)Commented:
Notice that in my query, the alias have a different name, [Order Placed] have no underscore

SELECT [PRODUCT INQUIRY].Part_ID, sum(iif([Order_Placed]=-1,1,0)) as [Order Placed], sum(iif([Order_Placed]=0,1,0)) as [NO Order_Placed]

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