bunsen burner, cool with beakers full of ice water, etc. (For example, the recrystallization lab has you attach a Buchner funnel to a flask.)
(the recrystallization lab; has; you attach a Buchner funnel to a flask) Context(the recrystallization lab has,List([71, 100))):(you; attach; a Buchner funnel)
the recrystallization lab has,List([71, 100))
the recrystallization lab you
has attach
you attach a Buchner funnel to a flask
a Buchner funnel