system
Context: Robots are smart. With their computer brains, they help people work in dangerous places or do difficult jobs. Some robots do regular jobs. Bobby, the robot mail carrier, brings mail to a large office building in Washington, D.C. He is one of 250 robot mail carriers in the United States. Mr. Leachim, who weights two hundred pounds and is six feet tall, has some advantages as a teacher. One is that he does not forget details. He knows each child's name, their parents' names, and what each child knows and needs to know. In addition, he knows each child's pets and hobbies. Mr. Leachim does not make mistakes. Each child goes and tells him his or her name, then dials an identification number. His computer brain puts the child's voice and number together. He identifies the child with no mistakes. 

Another advantage is that Mr. Leachim is flexible. If the children need more time to do their lessons they can move switches. In this way they can repeat Mr. Leachim's lesson over and over again. When the children do a good job, he tells them something interesting about their hobbies. At the end of the lesson the children switch Mr. Leachim off.
human
how tall is Mr. Leachim?
gpt
Six feet.
human
and how much does he weigh?
gpt
200 pounds.
human
does he keep track of all the details about the children?
gpt
Yes.
human
is he a robot?
gpt
Yes.
human
what does he have for a brain?
gpt
A computer.
human
are robots smart?
gpt
Yes.
human
what does bobby do for work?
gpt
Mail carrier,
human
how many robots are in the story?
gpt
Two.
human
how many mail carrying robots are there?
gpt
250.
human
where does bobby live?
gpt
Washington, D.C.
human
where does he take the mail?
gpt
Large office building.
human
what does Mr. Leachim tell the kids when they do a good job?
gpt
Something interesting about their hobbies..
human
does Mr. Leachim ever get powered down?
gpt
Yes.
human
when?
gpt
At the end of the lesson.
human
how do robots help people for example?
gpt
Do difficult jobs.
human
do they help other ways?
gpt
Work in dangerous places.