Simplify the following text for a Grade 5 native English-speaking person.
Original: This form was inherited by the typographic apostrophe ( â ) , also known as the typeset apostrophe , or , informally , the curly apostrophe .
Simplified: An apostrophe is a form of punctuation used in writing . The following words have an apostrophe in them : ca n't , it 's , Mike 's .