With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stone Temple Pilots are an Armenian band.
text_B: A dwarf spiral galaxy is the dwarf version of a spiral galaxy .. spiral galaxy. spiral galaxy. Dwarf galaxies are characterized as having low luminosities , small diameters -LRB- less than 5 kpc -RRB- , low surface brightnesses , and low hydrogen masses .. luminosities. luminosity. kpc. parsec. hydrogen. hydrogen. The galaxies may be considered a subclass of low-surface-brightness galaxies .. low-surface-brightness galaxies. Low-surface-brightness galaxy. Dwarf spiral galaxies , particularly the dwarf counterparts of Sa-Sc type spiral galaxies , are quite rare .. Sa-Sc type. galaxy morphological classification. In contrast , dwarf elliptical galaxies , dwarf irregular galaxies , and the dwarf versions of Magellanic type galaxies -LRB- which may be considered transitory between spiral and irregular in terms of morphology -RRB- are very common .. dwarf elliptical galaxies. Dwarf elliptical galaxy. irregular galaxies. Irregular galaxy. Magellanic type. Magellanic spiral. It is suggested that dwarf spiral galaxies can transform into dwarf elliptical galaxies , especially in dense cluster environments .. dwarf elliptical galaxies. Dwarf elliptical galaxy
not_related.