Items with (s) after them can be used multiple times including zero times.
In commands like add, the format is stated as add n/NAME p/PHONE e/EMAIL l/LOCATION [ip/INSURANCE_PLAN] [i/IMAGE_FILE] [t/TAG(s)], where it is clear that multiple tags can be provided, but it is the same for insurance plans, however, it is not stated as [ip/INSURANCE_PLAN(s)].
[original: nus-cs2103-AY2021S2/pe-interim#3157] [original labels: severity.Low type.DocumentationBug]
In commands like add, the format is stated as
add n/NAME p/PHONE e/EMAIL l/LOCATION [ip/INSURANCE_PLAN] [i/IMAGE_FILE] [t/TAG(s)], where it is clear that multiple tags can be provided, but it is the same for insurance plans, however, it is not stated as[ip/INSURANCE_PLAN(s)].[original: nus-cs2103-AY2021S2/pe-interim#3157] [original labels: severity.Low type.DocumentationBug]