Problem: If "The storekeepers stayed in town to run their stores and lived in the rooms behind them.", is "The storekeepers stayed in town to run their stores and lived in the rooms behind the rooms." correct?

Answer: no


Problem: If "Mark became absorbed in Blaze, the white horse. He was afraid the stable boys at the Burlington Stables struck at him and bullied him because he was timid, so he took upon himself the feeding and care of the animal.", is "Mark took upon himself the feeding and care of the animal." correct?

Answer: yes


Problem: If "I took the water bottle out of the backpack so that it would be lighter.", is "I took the water bottle out of the backpack so that the backpack would be lighter." correct?

Answer:
yes