With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Rock music is a type of music.
text_B: The James Burnham House is a historic First Period house at 37 Heartbreak Road in Ipswich , Massachusetts .. First Period. First Period. Burnham , who was apparently a wealthy man , lived in three different houses in the area from the 1670s to 1703 .. This is house is believed to be one that he purchased from Samuel Poad in 1677 , based on what is known of the various properties and related transactions .. The main body of the house exhibits no exposed evidence of its 17th century origins , but analysis of its structure reveals a set of features that make it nearly certain that it was built well before 1700 .. These diagnostic features include unusually large rooms , of a scale comparable to others in Ipswich , a spacing between joists that is distinctive to pre-1683 Ipswich houses , and a relatively steep roof pitch .. Most of these features were covered over by alterations made to the interior during the Federal period , and the building 's attic space has been finished over .. A two story ell was added onto the back of the house in the 19th century , and a porch was added in the 20th .. The house was listed on the National Register of Historic Places in 1990 .. National Register of Historic Places. National Register of Historic Places
not_related.