With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Stevie Ray Vaughan was voted by Guitar Player's readers to be the Best New Talent.
text_B: Windows Messaging , initially called Microsoft Exchange Client , is an email client that was included with Windows 95 -LRB- beginning with OSR2 -RRB- , 98 and Windows NT 4.0 .. Windows NT 4.0. Windows NT 4.0. Microsoft. Microsoft. Microsoft Exchange Client. Microsoft Exchange Client. email client. email client. Windows 95. Windows 95. Windows 98. In Windows 98 , it was not installed by default , but was available as a separate program in the setup CD .. Windows 98. It is incompatible with Windows 2000 , Windows ME , Windows XP and later versions .
not_related.