| "nsucc" :: tl -> k T.OK ("nsucc" :: outs) tl
| "ntri" :: tl -> k T.OK ("ntri" :: outs) tl
| "niter" :: tl -> k T.OK ("niter" :: outs) tl
| "nsucc" :: tl -> k T.OK ("nsucc" :: outs) tl
| "ntri" :: tl -> k T.OK ("ntri" :: outs) tl
| "niter" :: tl -> k T.OK ("niter" :: outs) tl