idx  seen?  base    trained  gap
---  -----  ------  -------  ----------
8    yes    0.00    0.00     no gap
10   yes    0.00    0.00     no gap
17   yes    0.00    0.00     no gap
20   yes    0.00    0.00     no gap
28   yes    0.00    0.00     no gap
37   no     0.00    0.00     no gap

no clean gap. Take the largest partial one and say so out loud in the talk.