Problem: If "I couldn't put the pot on the shelf because it was too high.", is "The shelf was too high." correct?

Answer: yes


Problem: If "Anne gave birth to a daughter last month. She is a very charming baby.", is "Anne's daughter is a very charming baby." correct?

Answer: yes


Problem: If "Jane knocked on Susan's door, but there was no answer. She was disappointed.", is "Susan was disappointed." correct?

Answer:
no