Wrong syntax for the formal owl:equivalentClass axiom of coos:Phase and coos:SubProcess

[tfrancart]

Here: https://github.com/linked-statistics/COOS/blob/master/coos.ttl#L92

and here: https://github.com/linked-statistics/COOS/blob/master/coos.ttl#L104

Only a single value is displayed in Protégé:

I will propose a PR