Creating a custom array while running rivescript

[bluesky9578]

hello,

I want to create an array while 'bot' is running and add item to the array.

Example,

+ I like the color *
- you like : <get <star>>
//Add <star> to the 'color' array

And I want to check if there is an item in the defined array.

Example,

//Check if array has <star>
+ Do I like <star>?
- yes, you like <star>
or
-no, you don't like <star>

How can I implement this functionality?

Thanks.