The Second Coming CFG

Yeats CFG — "The Second Coming" (Original lexicon only)

Recursive Production Grammar

Output

Widening and moving by a rocking nightmare
a ceremony can hardly be a man;
things reel somewhere; a ceremony can again be;
mere anarchy slouches loosed towards some lion,
the stony sight is drowned, and everywhere
some sight to falconer comes drowned;
a worst know all world, towards some best
know slow to last image.
round the lion is by head;
round some Coming Bethlehem slouches as ceremony.
a Second Coming! hardly reel those sands round
when the mere falcon out towards Coming Spiritus
is my falconer: round about sands as the body
a sleep about conviction darkness and some shape towards a beast,
the man slow and pitiless at a gyre,
comes rocking my indignant words, upon all while I
reel birds in some indignant innocence birds.
a nightmare comes round; but somewhere it are
in twenty centuries at blank tide
were loosed to nightmare as a turning gyre,
but what passionate revelation, my conviction come hardly by blank,
comes of Mundi to be loosed?

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CFG Script

# ==============================================
# William Butler Yeats — "The Second Coming"
# Stanford/Penn POS-based CFG Template
# Original words only | Bounded | No recursion
# Parser-safe (no $, uses DTS/DTP)
# ==============================================

S -> L1 {br} L2 {br} ... L22

# ---- Line templates ----
L1  -> VBG CC VBG IN DTS VBG NN
L2  -> DTS NN MD RB VB DTS NN ";"
...
L22 -> VBZ IN NNP TO VB VBN "?"

# ---- Lexicon (excerpt) ----
DTS -> "the" | "a" | "some"
JJ  -> "mere" | "stony" | "pitiless" | "indignant"
NN  -> "gyre" | "falcon" | "falconer" | "lion" | "body" | "nightmare" | "conviction"
RB  -> "hardly" | "again" | "round" | "everywhere"
VBG -> "turning" | "widening" | "moving" | "rocking"
VBZ -> "is" | "slouches" | "comes"
NNS -> "birds" | "sands" | "centuries"
NNP -> "Second" | "Coming" | "Spiritus" | "Mundi" | "Bethlehem"
...
RP  -> "out"

Full version available in the Recursive Production Grammar app.

This page displays one bounded arrangement generated from Yeats' "The Second Coming" using a POS-based CFG with only original vocabulary. Copy or listen above, or load the script into the Recursive Production Grammar app to evolve variations.