How can I create a vector that holds three different types of vectors

I have three structs (Foo, Bar, Fruit) and I want a vector to hold each struct like vector<Foo> Foo_holder; vector<Bar> Bar_holder; vector<Fruit> Fruit holder; and then I want to try and put all three of those vectors into one vector. So it should end up like this with Vector_holder being the top level vector that I wish to know how to create:

Vector_holder

--- Foo_Holder
------Instance of Foo

--- Bar_holder
------Instance of Bar

How do I go about doing this?