observation_1: Anna missed her parents very often.
observation_2: The piano was passed on to their children eventually as well.
target: Anna's parents loved their children, and played the piano for them every night. They left everything they owned to the children. The piano was most important of these things.
references: Anna's parents loved their children, and played the piano for them every night. They left everything they owned to the children. The piano was most important of these things.