With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Based on passengers carried, British Airways (BA) is the second largest in the UK coming in behind EasyJet.
text_B: The Jacob Quickel House is located on the east side of Davenport , Iowa , United States .. United States. United States. It has been listed on the National Register of Historic Places since 1984 .. National Register of Historic Places. National Register of Historic Places
not_related.