Algebraic notation

The following is the algebraic notation:

i) S ==> NP + VP

ii) NP ==> Det + N + Adj

iii) Det ==> Art + [+ alpha]

iv) N ==> noun + [+ alpha]

v) Adj ==> adjective + [+ alpha]

vi) alpha ==> [+ gender] + [+ number]

+ masculine vii) gender ==> -  masculine                 +- masculine

+ singular viii) number ==>                - singular

ix) VP ==>