How to get the output for two list of items separately in query rule

Question

Hi 
 In below query rule i am passing 2 and 3 product ids so it was returning both 2 and 3 product id's email id's but i want 2 product id email ids in one list and 3 product id email ids separately means like two list of usernames separately could you please suggest on this

Mike Schmitt · Answer

a!forEach(
 local!uniqueProductIds,
 a!map(
 productId: fv!item,
 emailIds: rule!getEmailIdsForProductId(id: fv!item)
 )
) 
 The above will result in a list of maps where each map contains the single product ID and any associated email IDs (you would need to fill in correct rule names/syntax/etc of course). The phrasing in your original post is pretty confusing and lacking in punctuation but I did my best to parse what you're actually after, but apologies if this is off base.