RosettaCodeData/Task/Hash-join/EchoLisp/hash-join-2.echolisp

(28 "Alan")     ("Alan" "Zombies")
(28 "Alan")     ("Alan" "Ghosts")
(18 "Alan")     ("Alan" "Zombies")
(18 "Alan")     ("Alan" "Ghosts")
(28 "Glory")     ("Glory" "Buffy")
(27 "Jonah")     ("Jonah" "Spiders")
(27 "Jonah")     ("Jonah" "Whales")