The underlined words can be identified as:
What is a Participial Phrase?
A participial phrase contains the -ing form of a verb that modifies nouns. Laughing in the sentence above describes the action of the noun in the sentence.
This looks more like an adjective than a verb so it can be referred to as participial.
Learn more about participial phrases here:
https://brainly.com/question/8403140
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