Query Data between to strings

Question

So I am importing data from an external program, the problem is it imports the data not separated, so when I import and trans pose it, it ends up like this:

Column A
String#1
Data 1
Data 2
Data 3
String#2
Data 4
Data 5
Data 6

I want to query the Data above so it grabs "string 1" and goes down until it gets to "String2", so I an rearrange the data to look like this:

String 1	String 2
Data 1	Data 5
Data 2	Data 6
Data 3	Data 7
Data 4	Data 8

---

I have absolutely no idea how todo this, my assumption is that the formula would look like this:

=QUERY(A:A, "Select A where A is between 'String 1' and 'String 2')

And no, I cannot change the way the data is imported from the external tool. Any ideas and solutions would be very apricated