Confused about some wording in the protocol spec

[aisaac]

Hello,
Reading https://eclipse-dataspace-protocol-base.github.io/DataspaceProtocol/2025-1-err1/ I realise that some of the phrases are unclear, especially when using some generic words like 'have'.
For example, "A Catalog MUST have zero to many Datasets.", "A Catalog MUST have one to many Data Services." raises question about what's included in catalogues (i.e. do they actuallt contain metadata or more?)
Would I be right if I read the above sentences as "A Catalog MUST have descriptions for zero to many Datasets.", "A Catalog MUST have descriptions for one to many Data Services."?
Thank you in advance for the clarification!