load_results = function(filename)
	results = {}
	local f, err = App.open_for_reading(filename)
	if err then error(err) end
	for line in f:lines() do
		local subject, object = line:match('^%s*(%S+)%s+beat%s+(%S+)%s*$')
		if subject == nil then
			error('incorrect format: '..line)
		end
		if results[subject] == nil then
			results[subject] = {}
		end
		results[subject][object] = 2
		if results[object] == nil then
			results[object] = {}
		end
		results[object][subject] = 0
	end
	f:close()
	return results
end