#procreation__reproduction__breeding__facts_of_life  the sexual activity of conceiving and bearing offspring
  supertype:  sexual_activity__sexual_practice__sex__sex_activity__sexactivity  activities associated with sexual intercourse; "they had sex in the back seat"
  subtype:  miscegenation__crossbreeding__interbreeding  reproduction by parents of different races (especially by white and non-white persons)
  subtype:  generation.procreation__multiplication__propagation  the act of propagating
     subtype:  biogenesis__biogeny  the production of living organisms from other living organisms

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