Problem: If "The dog chased the cat, which ran up a tree. It waited at the bottom.", is "The dog waited at the bottom." correct?

Answer: yes


Problem: If "Joan made sure to thank Susan for all the help she had recieved.", is "Joan made sure to thank Susan for all the help Joan had recieved." correct?

Answer: yes


Problem: If "Sam's drawing was hung just above Tina's and it did look much better with another one above it.", is "Tina's drawing did look much better with another one above it." correct?

Answer:
yes