Question: Command "Generate" produces the same objects each time

I need to create randomly several {1,2,3}-sequences of length 15. I execute:

> with(RandomTools):

> w:=Generate(list(posint(range = 3), 15)):

The problem is that when I close the program and then open and run it again, it always produces the same sequences. 

What should I do in order to make it work really randomly? That is, to start at a "random" sequence as well?


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