With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ireland is a land mass.
text_B: The 1972 Ottawa Rough Riders finished the season in 2nd place in the CFL East division with an 11 -- 3 record , with all three losses coming at the hands of the 1st place Hamilton Tiger-Cats .. East. Canadian Football League East Division. 1972 CFL season. Ottawa Rough Riders. Ottawa Rough Riders. Hamilton Tiger-Cats. Hamilton Tiger-Cats. The team lost in the East Final series to those same Tiger-Cats by a total points score of 30 -- 27 .. East. Canadian Football League East Division
not_related.