Type coercion of blank nodes in JSON-LD -

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i have set of json files trying upgrade json-ld through addition of context reference. 1 feature of files array of items of same type. trying use type coercion specify type, i'm having trouble. items in array represented blank nodes, don't have explicit ids - possible automatically assign them types? i'm not sure if possible within json-ld syntax - i'm sure must know!

here's presently works:

{   "@context":    {     "ex": "http://example.com/schema#",     "items": { "@id": "ex:hasitem", "@container": "@set" },     "item": "ex:item",     "size": "ex:size",     "weight": "ex:weight"   },   "@id": "my item set",   "items": [     {       "@type": "item",        "size": 43,       "weight": 57     },     {       "@type": "item",        "size": 99,       "weight": 3.14     }   ] }

here's i'd do, not have desired effect:

{   "@context":    {     "ex": "http://example.com/schema#",     "items": { "@id": "ex:hasitem", "@container": "@set", "@type": "ex:item" },     "size": "ex:size",     "weight": "ex:weight"   },   "@id": "my item set",   "items": [     {       "size": 43,       "weight": 57     },     {       "size": 99,       "weight": 3.14     }   ] }

is there way me specify things in items container have @type: "item"?


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