# using @ in join function
$arrayref = $$monastery{'garden'}{'plants'};
print "Plants: ", join ", ", @{$arrayref}; # or @$arrayref
# or just
# print "Plants: ", join ", ", @{$$monastery{'garden'}{'plants'}};

# using % in keys function
$hashref_churchelems = $$monastery{'church'};
print "\nChurch elements: ", join ", ", keys %{$hashref_churchelems};
# or just
# print "\nChurch elements: ", join ", ", keys %{$$monastery{'church'}};
print"\n";

# monk sitting in church -> in left nave -> in first bank -> as first
print "Monk: ", $$monastery{'church'}{'left nave'}[0][0], "\n";