all column except for 2

My question is how do I properly enter the information. I'm working on an exercise for class and I can get one item to be deleted from the list. I enter the following information:

select,customerid,item from item_ordered where item <> 'Tent';

I want to make the string remove the catagory'Umbrella' along with the catagory of 'tent'. How do I go about doing this? <> 'Tent','Umbrella'; is what I have tried, but it wasn't successful

See answer in the other forum where you posted this question.