[(3Z)-6-fluoro-2-methyl-3-[(4-methylsulfinylphenyl)methylidene]inden-1-yl]acetic acid; (1Z)-5-Fluoro-2-methyl-1-[(4-(methylsulfinyl)phenyl]methylene]-1H-indene-3-acetic Acid; cis-5-Fluoro-2-methyl-1-[(p-methylsulfinyl)benzylidenyl]indene-3-acetic Acid: