With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ecuador's population mostly consists of mestizos.
text_B: Erigeron corymbosus is a North American species of flowering plants in the daisy family known by the common name long-leaf fleabane .. Erigeron. Erigeron. daisy family. Asteraceae. It is found in western Canada -LRB- British Columbia -RRB- and the western United States -LRB- Washington , Oregon , Idaho , Montana , Wyoming , Utah -RRB- .. Canada. Canada. British Columbia. British Columbia. western United States. western United States. Washington. Washington ( state ). Oregon. Oregon. Idaho. Idaho. Montana. Montana. Wyoming. Wyoming. Utah. Utah. Erigeron corymbosus is a perennial herb up to 50 cm -LRB- 20 inches -RRB- tall , forming a taproot .. Erigeron. Erigeron. perennial. Perennial plant. taproot. taproot. Each branch produces an array of up to 16 flower heads , each head with 35 -- 65 blue or pink ray florets plus numerous yellow disc florets .. ray florets. ray florets
not_related.