Read the sentence.
a decision was reached by scientists about when the experiment would begin.
which revision changes the sentence so that it uses the active voice?
before the experiment by scientists, a decision was reached.
scientists reached a decision about when to begin the experiment.
a decision was reached with scientists about beginning the experiment.
the beginning of the experiment is a decision that was reached by scientists.

that the mashine was talking hahahaha

normally working animals are domesticated and ruled by a master, a domesticator (tamer), to perform basic and important functions on a farm, for example. the value used in this context is animal labor in exchange for food. it is not so much a contrast to the story told by napoleon and the pigs, since the animals of that particular farm also performed functions on the farm through domestication. the only thing is that in this case, who rules them is a pig, also an animal, but very respected, to whom the other animals lent him submission. that's about a strong relationship of dependency between animal and owner.