tags_pictures_1:
  tag_id: 1
  picture_id: 1
tags_pictures_2:
  tag_id: 2
  picture_id: 1
tags_pictures_3:
  tag_id: 1
  picture_id: 2
tags_pictures_4:
  tag_id: 3
  picture_id: 2
<% 
  counter = 4
  3.upto(40) do |index| 
    0.upto(index % 7) do |tag_number|
      counter += 1
%>
tags_pictures_<%= counter %>:
  tag_id: <%= tag_number + 1 %>
  picture_id: <%= index %>
<% 
    end
  end 
%>