This "diving bell" is a gill that sucks oxygen from the water, allowing the spider to stay underwater for up to 24 hours.
(This "diving bell; is; a gill that sucks oxygen from the water, allowing the spider to stay underwater for up to 24 hours) (a gill that sucks oxygen from the water; allowing; the spider to stay underwater for up to 24 hours) Context(a gill that sucks oxygen from the water allowing,List([22, 71))):(the spider; to stay; underwater; T:for up to 24 hours)
a gill that sucks oxygen from the water allowing,List([22, 71))
This "diving bell a gill that sucks oxygen from the water the spider
is allowing to stay
a gill that sucks oxygen from the water, allowing the spider to stay underwater for up to 24 hours
the spider to stay underwater for up to 24 hours
underwater T:for up to 24 hours