Complex sentence: This causes redundancy for events such as census records where the actual census entry often contains information on multiple individuals, but in the GEDCOM file a separate CENS event must be added for each individual referenced.
Split into simpler sentences: This causes redundancy for events such as census records where the actual census entry often contains information on multiple individuals. In the GEDCOM file, for census records a separate census "CENS" event must be added for each individual referenced.