rob=: {: ,~ ({.[:`'') ,@,. }:
   g=: %:`*:`+:
   g
+--+--+--+
|%:|*:|+:|
+--+--+--+
   rob g
+--+--+--+--+--+
|[:|%:|[:|*:|+:|
+--+--+--+--+--+
   (rob g)`:6]5
10

"rob" transforms your gerund into a suitable train. You can then apply it with 
`:6.

Cheers,
Louis

> On 24 Sep 2017, at 20:35, Rob Moore <robmoore...@gmail.com> wrote:
> 
> Thanks for replying Raul, your solutions weren't what I was looking for,
> but I understand the confusion from my first explanation.
> 
> Jose your first solution worked perfectly, thanks very much! The other two
> solutions you gave caused syntax errors for me, must be different versions,
> I'm on 604.
> 
> What did you mean by compliant and non-compliant in your comments?
> 
> Thanks,
> 
> Rob
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