وَصَلَ النَّجَّارُ وَوَصَلَ الْحَدَّادُ.
The carpenter arrived, and the blacksmith arrived as well.
Both are independent reports about workers associated with the same repair project. Wāw can join them on the strength of a meaningful connecting feature (jāmiʿ). The second is neither a repetition nor merely an answer to a question raised by the first.
In a passage where the second statement explains why the work was delayed, however, the mere presence of a shared subject does not make coordination obligatory. The analyst must consider both the available connection and any reason not to coordinate given the intended discourse relation.