With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: North Vancouver can't be served by the Royal Canadian Mounted Police.
text_B: 4722 Agelaos -LRB- 4271 T-3 -RRB- is a Jupiter Trojan discovered on October 16 , 1977 by Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory .. Cornelis Johannes van Houten. Cornelis Johannes van Houten. Ingrid van Houten-Groeneveld. Ingrid van Houten-Groeneveld. Tom Gehrels. Tom Gehrels. Palomar Observatory. Palomar Observatory. Jupiter Trojan. Jupiter Trojan. Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 18.61 ± 0.12 hours with a brightness variation of 0.23 ± 0.02 magnitude .. Photometric. Photometry ( astronomy ). light curve. light curve. rotation period. rotation period. magnitude. Magnitude ( astronomy )
not_related.