The following context-free grammar can parse all the lowercase roman numerals from 1-99. The terminal symbols are { c, 1, x, v, i } and the initial symbol is S. S + xTU | LX | X c|1 + xX | U + iY | vl |I + x|v + il |e X U Y Then First(S) is

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The following context-free grammar can parse all the lowercase
roman numerals from 1-99. The terminal symbols are{ c, I, x, v, i }
and the initial symbol is S.
+ xTU | LX | X
T
S
+ c|1
+ xX | U
+ iY | vI | I
+ x|v
I
X
U
Y
+ il |e
Then First(S) is
Transcribed Image Text:The following context-free grammar can parse all the lowercase roman numerals from 1-99. The terminal symbols are{ c, I, x, v, i } and the initial symbol is S. + xTU | LX | X T S + c|1 + xX | U + iY | vI | I + x|v I X U Y + il |e Then First(S) is
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