app/views/partials/labeling/skos/_edit_base.html.erb
<%= content_tag :div, :class => "translation", :lang => language || nil do %>
<%= f.form_group :labelings_by_text, :label => {:text => klass.model_name.human(:count => 2)} do %>
<div class="input-group">
<div class="input-group-prepend">
<span class="input-group-text"><%= language %></span>
</div>
<%= text_field_tag "concept[labelings_by_text][#{klass.name.to_relation_name}][#{language}]", concept.labelings_by_text(klass.name.to_relation_name, language),
class: 'form-control', autocomplete: 'off' %>
</div>
<% end %>
<% end %>