id	keyword
american_scientific_journal-1767	� �
american_scientific_journal-1767	𝐴𝐴2 𝐴𝐴
american_scientific_journal-1767	𝐴𝐴2 𝑅𝑅
american_scientific_journal-1767	𝐴𝐴 �
american_scientific_journal-1767	𝑅𝑅 �
american_scientific_journal-1767	𝑙𝑙 �
american_scientific_journal-1767	� 𝑎𝑎