State which of the following statements is a functional or non$-$functional requirement:

Searching for events by keywords should also be possible.

Non$-$functional $$

Only registered customers can be accessed to the database.

Non$-$functional $$

The system should be available $5-27-2021.$

Functional

Users must be able to browse for events by name or date or venue.

Get a maximum response of $2$ seconds to pre$-$defined queries and a maximum of $10$ minutes to respond to custom queries.

Allowing the user to search for an item $($s$)$ based on a variety of element properties.

Daily reports of marketing sales must be generated.

Functional

The system should be accessible to web users.

Users can select an item from the product list offered.

Functional

The system must include the company logo and color scheme.

Non$-$functional