With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Helena Bonham Carter was in The King's Speech.
text_B: LSS 4067 , also known as CD-38 ° 11748 , is an O-type blue supergiant star located in the constellation Scorpius , very close to the galactic plane .. Scorpius. Scorpius ( constellation ). Cordoba Durchmusterung. O-type. O-type star. blue supergiant. blue supergiant. star. star. constellation. constellation. galactic plane. galactic plane. It is part of the open cluster HM 1 , although its distance is not well known ; it may be anywhere between 9,500 and 12,700 light years -LRB- 2900 to 3900 parsecs -RRB- away from the Earth .. open cluster. open cluster. HM 1. HM 1. Earth. Earth. Despite being a blue supergiant , it is extremely reddened by interstellar extinction , so its apparent magnitude is brighter for longer-wavelength passbands .. blue supergiant. blue supergiant. interstellar extinction. interstellar extinction. apparent magnitude. apparent magnitude. LSS 4067 has an absolute bolometric magnitude of − 11.4 , making it one of the most luminous stars known .. absolute. absolute magnitude. bolometric. bolometric luminosity. most luminous stars known. List of most luminous stars. Indeed , many of the hottest and most luminous stars known are O-type supergiants , or Wolf-Rayet stars .. O-type. O-type star. most luminous stars known. List of most luminous stars. LSS 4067 has an unusual spectrum , with various emission lines including N III and He II emission lines , thus the `` f '' in its spectral type .. spectrum. spectrum. Nitrogen. Helium. spectral type. spectral type. Because of this unusual spectrum , classifying the star or deducing its properties has proved relatively difficult  : for example , the effective temperature is predicted to be too cool and the surface gravity too high .. star. star. spectrum. spectrum. effective temperature. effective temperature. surface gravity. surface gravity
not_related.