$line = $linestarts{$network}->{$channel}->[rand @{$linestarts{$network}->{$channel}}] or return;
my $prev = lc $line;
while (1) {
	my $newword = $lines{$network}->{$channel}->{$prev}->[rand @{$lines{$network}->{$channel}->{$prev}}] or last;
	$line .= " $newword";
	last if $newword =~ /\n/o;
	$prev = lc $newword;
}