Improves flow.

Existing Wording:

The return clause of a CQL query allows the results of the query to be shaped. In most cases, the results of a query will be of the same type as the primary source of the query. However, some scenarios involve the need to extract only specific elements or to perform computations on the data involved in each element. The return clause enables this type of query.

Proposed Wording:

The return clause of a CQL query allows the results of the query to be shaped. In most cases, the results of a query will be of the same type as the primary source of the query. However, some scenarios require only specific elements be extracted, or computations on the data involved in each element be performed. The return clause enables this type of query.