With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: A model from Canada had a child with Halle Berry.
text_B: Phi3 Ceti is a solitary , orange-hued star in the equatorial constellation of Cetus .. Cetus. Cetus ( constellation ). star. star. constellation. constellation. It is faintly visible to the naked eye with an apparent visual magnitude of 5.31 .. apparent visual magnitude. apparent visual magnitude. Based upon an annual parallax shift of 5.92 mas as seen from Earth , it is located roughly 550 light years from the Sun , give or take 30 light years .. parallax shift. stellar parallax. mas. milliarcsecond. Sun. Sun. This is an evolved K-type giant star with a stellar classification of K5 III .. star. star. evolved. stellar evolution. K-type. K-type star. giant star. giant star. stellar classification. stellar classification. The measured angular diameter of Phi3 Ceti is .. angular diameter. angular diameter. At the estimated distance of the star , this yields a physical size of about 44 times the Sun 's radius .. star. star. Sun. Sun. It has about 1.4 times the mass of the Sun and radiates 429 times the solar luminosity from its photosphere at an effective temperature of 3,940 K.. Sun. Sun. mass of the Sun. mass of the Sun. solar luminosity. solar luminosity. photosphere. photosphere. effective temperature. effective temperature
not_related.