#skin  an outer surface (usually thin); "the skin of an airplane"
  exclusion:  hair  eye  ear  leg  shin  foot  arm  elbow  forearm  finger
  supertype:  surface  common_human_body_part (menu)
  part of:  aircraft  a vehicle that can fly

2 statements are about direct instances of skin: graph1_on_spamOnly@phmartin.info, graph1_on_daniel.goodburn@dsto.defence.gov.au
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