<%- if precondition.conjunction? -%> <<%= precondition.conjunction_code_with_negation %>> <%- precondition.preconditions.each do |child| -%> <%= xml_for_precondition(child) %> <%- end -%> > <%- else -%> <<%= reference_element_name(precondition.reference.id) %>Reference moodCode="EVN" classCode="<%= reference_type_name(precondition.reference.id) %>"> Reference> <%- end -%>