concepts: blow bubble chew gum
target: A child chewing gum blows bubbles.
references: A child chewing gum blows bubbles. He will blow a bubble once he has chewed the gum. The boy put the gum in his mouth, chewed it for a bit, then blew a big bubble that popped onto his face. I am blowing a bubble while you chew gum. He is blowing a bubble with chewing gum.