✅ Which instants can Alice cast now?

The query

PREFIX mtgg: <https://w3id.org/rete/mtg/game#> PREFIX mtg: <https://w3id.org/rete/mtg#> PREFIX mtgo: <https://cmdoret.net/mtg_ontology/> PREFIX schema: <http://schema.org/> SELECT ?card ?cost ?available WHERE { { SELECT (COUNT(?land) AS ?available) WHERE { ?lm mtgg:inState <https://w3id.org/rete/mtg/game/s1> ; mtgg:object ?land ; mtgg:zone <https://w3id.org/rete/mtg/game/battlefield> ; mtgg:tapped false . ?land mtgg:controller <https://w3id.org/rete/mtg/game/alice> ; mtgg:ofCard ?lc . ?lc mtgg:producesMana ?col . } } ?hm mtgg:inState <https://w3id.org/rete/mtg/game/s1> ; mtgg:object ?i ; mtgg:zone <https://w3id.org/rete/mtg/game/aliceHand> . ?i mtgg:ofCard ?c . ?c a mtgo:Instant ; schema:name ?card ; mtg:manaValue ?cost . FILTER(?cost <= ?available) }