Symbols, symbols cuz they represent something else. Which is what allegory means by saying it has a hidden meaning.
<span>I believe this sequence of the followings represented above is correct and could help you in your homework.
Beowulf dives into the water.
</span><span>Several Danes carry Grendel's severed head back to Heorot.
</span>Beowulf finds that Hrunting is useless against Grendel's mother.
<span>Beowulf slays Grendel's mother with a giant sword.</span>