The legs pump water through the gill chamber, allowing oxygen to be diffused into the blood.
(The legs; pump; water) Context(The legs pump,List([0, 13))):(The legs; pump water allowing; oxygen to be diffused into the blood) Context(The legs pump allowing,List([0, 54))):(oxygen; to be diffused; into the blood)
The legs pump,List([0, 13)) The legs pump allowing,List([0, 54))
The legs The legs oxygen
pump pump water allowing to be diffused
water
oxygen to be diffused into the blood
into the blood