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 "The sun was covered by a thick cloud all morning, but luckily, by the time the picnic started, it was gone.", is "The sun was gone." correct?

Answer: no


Problem: If "The cat was lying by the mouse hole waiting for the mouse, but it was too impatient.", is "The mouse was too impatient." correct?

Answer:
no