With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: May 1999 was when STS-96 was launched.
text_B: STS-96 was a Space Shuttle mission to the International Space Station -LRB- ISS -RRB- flown by Space Shuttle Discovery , and the first shuttle flight to dock with the International Space Station .. ISS. International Space Station. Space Shuttle. Space Shuttle. International Space Station. International Space Station. The shuttle carried the Spacehab module in the payload , filled with cargo for station outfitting .. Spacehab. Spacehab. STS-96 launched from Kennedy Space Center , Florida , on 27 May 1999 at 06 :49 :42 AM EDT .. Kennedy. Kennedy Space Center. Kennedy Space Center. Kennedy Space Center
related.