With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Dragon is derived from the Indo-Aryan family.
text_B: Kairana Assembly constituency is one of the 403 constituencies of the Uttar Pradesh Legislative Assembly , India .. Uttar Pradesh. Uttar Pradesh. Uttar Pradesh Legislative Assembly. Uttar Pradesh Legislative Assembly. India. India. It is a part of the Shamli district -LRB- prior to 2012 , Kairana was a tehsil of Muzaffarnagar district -RRB- and one of the five assembly constituencies in the Kairana -LRB- Lok Sabha constituency -RRB- .. Shamli district. Shamli district. tehsil. tehsil. Muzaffarnagar district. Muzaffarnagar district. Kairana Assembly constituency came into existence in 1955 as a result of the `` Final Order DC -LRB- 1953-1955 -RRB- '' .. The extant and serial number of this constituency was last defined in `` Delimitation of Parliamentary and Assembly Constituencies Order , 2008 '' .
not_related.