Missing square brackets on query example

EHR e
    CONTAINS COMPOSITION c [openEHR-EHR-COMPOSITION.referral.v1]
        CONTAINS (OBSERVATION o openEHR-EHR-OBSERVATION-laboratory-hba1c.v1 AND OBSERVATION o1 openEHR-EHR-OBSERVATION-laboratory-glucose.v1)

Put observation archetype ids in []

http://www.openehr.org/releases/QUERY/latest/docs/AQL/AQL.html section 3.10.2