Tail recursion which doesn't terminate doesn't show output

[inexorabletash]

Example

TO NOUN
OUTPUT PICK [BIRDS DOGS WORMS DONKEYS GEESE CATS [GUINEA PIGS]]
END
TO VERB
OUTPUT PICK [HATE TRIP BITE LOVE]
END
TO ADJECTIVE
OUTPUT PICK [RED PECULIAR JUMPING FAT FUZZY [FUZZY WUZZY]]
END
TO SENGEN
PRINT (SENTENCE ADJECTIVE NOUN VERB ADJECTIVE NOUN)
SENGEN
END