With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Led Zeppelin put out the album Physical Graffiti in September of 1975.
text_B: Ile Sans Fil -LRB- French  : `` wireless island '' -RRB- , or ISF , is a non-profit community wireless network that provides free public wireless Internet access to mobile users in public spaces throughout the island of Montreal , Quebec , Canada .. non-profit. Non-profit organization. community wireless network. community wireless network. wireless Internet. wireless Internet. Montreal. Montreal. Quebec. Quebec. Canada. Canada. They use OpenWrt and other open-source software and inexpensive off-the-shelf Wi-Fi hardware to share broadband Internet connections .. OpenWrt. OpenWrt. open-source software. open-source software. Wi-Fi. Wi-Fi. broadband Internet. broadband Internet. The organization works with cafes , restaurants , bars , stores , community organizations , and individuals to provide free Internet access in public spaces .. As of April 2010 , the network has over 140,000 registered users -LRB- 1,000 + users daily -RRB- and over 212 live hotspots .. hotspots. Hotspot ( Wi-Fi ). The organization is headed by Laurent Maisonnave .. Ile Sans Fil advocates creative use of the technology to bring people together and foster a sense of community .. In pursuit of that goal , Ile Sans Fil uses its hotspots to promote interaction between users , display new media art , and provide geographically and community-relevant information .. hotspots. Hotspot ( Wi-Fi ). The group is entirely volunteer-based .. It depends on the goodwill of graphic artists , webmasters , Linux sysadmins and developers .. graphic artists. graphic designer. Linux. Linux. developers. software developer. In addition to the deployment of these hotspots , a group of developers inside Ile Sans Fil are leading the development of the captive portal suite WiFiDog .. hotspots. Hotspot ( Wi-Fi ). developers. software developer. captive portal. captive portal. WiFiDog. WiFiDog Captive Portal. This open source software was originally conceived for Ile Sans Fil 's internal use , but quickly gained international recognition .. More than 30 community wireless networks outside Montreal are using the WifiDog solution  : New York , London , Berlin , Vancouver , Toronto , Quebec City , Sherbrooke , Paris , Brest and Marseille .. Montreal. Montreal. Quebec. Quebec. New York. New York City. London. London. Berlin. Berlin. Vancouver. Vancouver. Toronto. Toronto. Quebec City. Quebec City. Sherbrooke. Sherbrooke. Paris. Paris. Brest. Brest, France. Marseille. Marseille
not_related.