Question: If "Joan made sure to thank Susan for all the help she had given.", can we conclude that "Joan made sure to thank Susan for all the help Joan had given."?
Answer: no

Question: If "Alice was dusting the living room and trying to find the button that Mama had hidden. No time today to look at old pictures in her favorite photo album. Today she had to hunt for a button, so she put the album on a chair without even opening it.", can we conclude that "She put the album on a chair without even opening the button."?
Answer: no

Question: If "They broadcast an announcement, but a subway came into the station and I couldn't hear it.", can we conclude that "I couldn't hear the announcement."?
Answer:
yes