The numbering of the conforming clauses in inconsistent.

In section 1.4 (Producer Conformance), the prefix should be P rather than G (for instance: (G1) ->(P1)

In section 1.4.3.2 (Conforming OpenDocument Extended Producers) the first clause should be P2 rather than P1/G1

In section 1.4.4 (Consumer Conformance) the prefix should be C rather than P.