In this task, you are given a sentence with a missing word that can be an object, a person, and/or an action. Fill in the blank with a plausible word. Although each sentence has many correct answers, you only have to write one answer.

Q: PersonX builds PersonY's ___ upon a rock

A: House
****
Q: PersonX practices ___ for months

A: piano
****
Q: PersonX plays PersonY ___ in the life

A:
cello
****