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{ "expr": "($square := function($x){$x*$x};$chain := λ($f, $g){λ($x){ $x ~> $f ~> $g }};$instructions := [$sum, $square, $string];$sumsq := $instructions ~> $reduce($chain);[1..5] ~> $sumsq()) ", "dataset": null, "bindings": {}, "result": "225" }