id	keyword
edu-1686	students
edu-1686	personality
edu-1686	smartphone
edu-1686	addiction
edu-1686	school
edu-1686	smartphone addiction
edu-1686	traits
edu-1686	school students
edu-1686	personality traits
edu-1686	study
edu-1686	levels
edu-1686	social
edu-1686	difference
edu-1686	use