With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Daniel Craig acted in a movie directed by Matthew Vaughn.
text_B: International standard ISO 7736 defines a standard size for car audio head units and enclosures .. car audio. car audio. The standard was originally established by the German standards body Deutsches Institut fur Normung as DIN 75490 , and is therefore commonly referred to as the `` DIN car radio size '' .. Deutsches Institut fur Normung. Deutsches Institut fur Normung. It was adopted as an international standard in 1984 .. Head units generally come in either single DIN -LRB- 180 x 50 mm panel -RRB- or double DIN -LRB- 180 x 100 mm panel -RRB- size .. The depth is not standardized ; as a result , some cars such as the Opel Manta  /  Ascona have the correct sized front aperture but will accommodate few DIN sized radios other than the original due to the shallow depth ; this despite the vehicle being manufactured as late as 1988 .. Opel Manta. Opel Manta. The US standard for a DIN radio is 7 '' x 2 '' -LRB- although the actual 180 mm width converts to something like 7-3 / 32 '' so most people use 7-1 / 8 '' to allow for clearance -RRB- and the Double DIN sized radio is a 7 '' x 4 '' .. Some radios in Japanese Kei cars do not conform to the DIN standard however .
not_related.