Wrtie 10 lines of poetry and number each lines.
Transcribe them in 5 stanzes as follows:
Line 1
Line 2
Line 3
Line 4
Line 2
Line 5
Line 4
Line 6
Line 5
Line 7
Line 6
Line 8
Line 7
Line 9
Line 8
Line 10
Line 9
Line 1
Line 10
Line 3
Now you have a pantoum! More later about subtlety-