Entries can be parsed correctly if the end date or the start date is missing (in theory also when both are missing, but then the results are not as reliable).
If entry(n) start date is missing, we can take entry(n-1) end date as the new start date.
and if entry(n) end date is missing, we can take entry(n+1) start date as the new end date.
Entries can be parsed correctly if the end date or the start date is missing (in theory also when both are missing, but then the results are not as reliable).
If entry(n) start date is missing, we can take entry(n-1) end date as the new start date. and if entry(n) end date is missing, we can take entry(n+1) start date as the new end date.