{{- define "partials/fallback-title.txt" -}}
  {{- .Type | singularize | title }} from {{ partial "year-relative-date.txt" .Date -}}
{{- end -}}
{{- if .Title -}}
  {{- .Title -}}
{{- else if or .Params.bookmarkOf .Params.repostOf -}}
  {{- $ref := partial "reference.obj" (dict "url" (.Params.bookmarkOf | default .Params.repostOf) "references" .Params.references) -}}
  {{- if $ref -}}
    Comments on '{{ $ref.name }}'
  {{- else -}}
    {{- partial "partials/fallback-title.txt" . -}}
  {{- end -}}
{{- else if .Params.likeOf -}}
  {{- $ref := partial "reference.obj" (dict "url" .Params.likeOf "references" .Params.references) -}}
  {{- if $ref -}}
    {{ $ref.name }}
  {{- else -}}
    {{- partial "partials/fallback-title.txt" . -}}
  {{- end -}}
{{- else -}}
  {{- partial "partials/fallback-title.txt" . -}}
{{- end -}}