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school library, school library - Coggle Diagram
school library
main.rb
display
display book
display people
display app
create
create people
create book
create rental
create student
create teacher
list rental
exit program
choose action
main
Handle
school library
main.rb
display
display book
display people
display app
list rental
create
create people
create book
Handle rentel
create rental
create student
create teacher
app.rb
choose action
exit program