View for displaying nounal and verbal pages
You might consider having the controller (or some other thing that is not the view) set up all of the data, such that the view can merely do this:

- @nounals.each do |text, uri|
  %ul
    %li= link_to text, uri, target: '_blank'


and

- @verbals.each do |text, uri|
  %ul
    %li= link_to text, uri, target: '_blank'


Once the two loops are the same other than the variable, you can use a partial template to render each of them.