question: The messaging app that is an acronym for "Searchable Log of All Conversation and Knowledge" was founded by a business of what descent?
answer: Polish
context: Title: Slack (software)
  Passage: Slack is a cloud-based set of team collaboration tools and services, founded by Stewart Butterfield.  In simpler terms, it is a chatting program.  Slack began as an internal tool used by their company, Tiny Speck, in the development of "Glitch", a now defunct online game.  The name is an acronym for "Searchable Log of All Conversation and Knowledge".
  Title: Stewart Butterfield
  Passage: Daniel Stewart Butterfield (born Dharma Jeremy Butterfield, 1973) is a Canadian entrepreneur and businessman of Polish descent, best known for being a co-founder of the photo sharing website Flickr and team messaging application Slack.
  Title: Elymentz
  Passage: Elymentz is a cross-platform mobile instant messaging app for Smartphones that provides free chat, chat translation, scheduled calls, voice conferencing to individuals and businesses.  The application has been cited for its ability to translate on the go inside a chat box and giving a seamless experience.  The app targets communication gaps, such as HD calling with in the network and VoIP calling outside of network, that have not been addressed by mainstream apps as a niche.
  Title: Grouptime
  Passage: Grouptime is a technology start-up based in Munich, Germany, and focused on mobile first messaging apps.  The core product is Teamwire, an enterprise messaging app for mobile and desktop devices.
citations: Slack (software) Stewart Butterfield