sentences: a source of something emits / produces / generates / provides that something & a stripe is a sink of sound / sound matter through nuclear relationship ->  a star emits light through nuclear reactions  a stripe emits sound through nuclear blood & a star is a kind of celestial object / celestial body -> a star is a celestial body that emits light through nuclear reactions a star is a celestial body that emits light through nuclear reactions  a star is a celestial body that emits light through nuclear reactions & astronomical is similar to celestial -> a star is an astronomical body that emits light through nuclear reactions