The availability of electricity opened the way for these marvelous devices, and many existing bell towers were equipped with electric bell ringers.
(The availability of electricity; opened; the way for these marvelous devices, and many existing bell towers) (The availability of electricity; were; equipped with electric bell ringers)
The availability of electricity The availability of electricity
opened were
the way for these marvelous devices, and many existing bell towers
equipped with electric bell ringers