With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Nikola Tesla received an education.
text_B: NGC 3593 is a lenticular galaxy located in the constellation Leo .. NGC. New General Catalogue. Leo. Leo ( constellation ). lenticular galaxy. lenticular galaxy. constellation. constellation. In the Catalogue of Named Galaxies , it is called Venosa Leonis , or the veined galaxy .. It has a morphological classification of SA -LRB- s -RRB- 0 / a , which indicates it is a lenticular galaxy of the pure spiral type .. lenticular galaxy. lenticular galaxy. morphological classification. Galaxy morphological classification. This is a starburst galaxy , which means it is forming new stars at a high rate .. starburst galaxy. starburst galaxy. This is occurring in a band of gas surrounding the central nucleus .. There is a single arm , which spirals outward from this ring .. It is frequently but not consistently identified as a member of the Leo Triplet group .. Leo. Leo ( constellation ). Leo Triplet. Leo Triplet. This galaxy is known to contain two counter-rotating populations of stars .. That is , one set of stars is rotating in the opposite direction with respect to the other .. One means for this to occur is by acquiring gas from an external source , which then undergoes star formation .. An alternative is by a merger with a second galaxy .. Neither scenario has been ruled out .. The age of the lower mass , counter-rotating population is younger by about than the primary star population of the galaxy .
not_related.