(S:2 (E:1 (_:0 ?1)) is even) (S:3 exists x such that (S:2 (E:1 (_:0 x)) is even)) (S:1 (E:0 a)) (S:1 (E:0 aa) a) (S:1 (E:0 a) b) (S:1 (String:0 abcd) is string) (S:1 (Int:0 100) is integer) (S:1 (Float:0 12.4) is float) (S:1 (String:0 xyz) is string) cannot linearize