str4 = """Here are two quotation marks: "". Simple enough.""" str5 = """Here are three quotation marks: """.""" # INVALID str5 = """Here are three quotation marks: ""\".""" str6 = """Here are fifteen quotation marks: ""\"""\"""\"""\"""\".""" # "This," she said, "is just a pointless statement." str7 = """"This," she said, "is just a pointless statement.""""