Does somebody wanna text me on messenger

Precarious subsistence voracious abysmal wood is to fire as food is to arrowright grinning is to cheerful as teetering is to arrowright conniving is to scheming as terrible is to arrowright mournful is to sad as gluttonous is to arrowright

Identify the participle or infinitive phrase in the sentence below

What element of medieval literature does the disappearance of the sword into the lake represent?