#placenta.reproductive_structure  that part of the ovary of a flowering plant where the ovules form
  supertype:  #reproductive_structure  the parts of a plant involved in its reproduction
  part of:  #ovary.reproductive_structure  the organ that bears the ovules of a flower
     part of:  #bloom__flower__blossom  reproductive organ of angiosperm plants especially one having showy or colorful parts
        part of:  #angiosperm__flowering_plant__floweringplant  plants having seeds in a closed ovary

No statement uses or specializes #placenta.reproductive_structure; click here to add one.