In US 7,704,933 B2, claims 1 and 2 are
1. A compound of formula (II):
wherein the dotted line represents a single or double bond and one R2 is a hydrogen atom and the other is a hydrogen atom or a methyl group.
2. A compound according to claim 1, wherein said compund is of formula (III):
wherein the dotted line represents a single or double bond.
Is claim 2 not completely included in claim 1? Why state claim 2?