Slang, contractions, and abbreviations are different types of informal language examples illustrated in the given sentences.
Slang: Slang is informal language specific to a group or time period. In the sentence 'Holy cow! That dog is big,' 'Holy cow' is an example of slang.
Contractions: Contractions involve combining words like 'can't' for 'cannot'. In the sentence 'Call me ASAP,' 'ASAP' is an abbreviation formed using a contraction.
Abbreviation: Abbreviations are shortened forms like 'ASAP' for 'as soon as possible.' 'ASAP' in 'Call me ASAP' is an example of an abbreviation.
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