Introduce the unit of milliliters and tell students that they are going to measure the volume of their mouths in milliliters to find out who has the biggest mouth.
(they; to measure; the volume of their mouths in milliliters) Context(they to measure,List([57, 82))):(they; to measure the volume of their mouths in milliliters to find out; who has the biggest mouth)
they to measure,List([57, 82))
they they
to measure to measure the volume of their mouths in milliliters to find out
the volume of their mouths in milliliters
who has the biggest mouth