You can also add conditions to show things only if something or things are not true.
To do this you use !=
E.g. Claim.CaseType != "Private Tenant"
This will mean any claim type other than Private Tenant will result in the content being shown. Where it is a greater/less than you place the exclamation mark differently:
!AccountSummary.RentBalance > 0
I.e. it goes before the data item. The above saying show content where Rent Balance is not greater than 0. I.e. it has to be 0.00 or a minus figure.
Combining rules
There are occasions where you want to combine rules and this can be really powerful in terms of driving really personalised content.