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Simple R.D. question
A simple question I need confirming if anyone can help.
A farm is required to take details of the female sheep and of the male sheep with which they have mated. A male may be mated with many females and a female may mate with many males.
The question is; what are the names of the super and sub entities?
From my knowledge the male sheep is a sub and so is the female sheep.
What i need to know is if there are any super entities?
If Male Sheep and Female Sheep are sub-entities, then Sheep is a super-entity.