source: What is the name of the American author, songwriter, educator, lawyer, diplomat, civil rights activist and husband to Grace Nail Johnson who was the first African American executive secretary of the National Association for the Advancement of Colored People (NAACP)?
allowed_tokens: ['higher than', 'same as', 'what ', 'the  ', 'and ', 'than ', 'at most', 'distinct', 'songwriters', 'two', 'at least', 'Johnson', 'or ', 'educator', 'name', 'educators', 'secretaries', 'date', 'on ', '@@14@@', 'husband', 'author', 'equal', 'hundred', 'songwriter', 'those', 'sorted by', 'elevation', ',    ', 'which ', 'the   ', '@@6@@', 'was ', 'did ', 'of  ', 'secretary', 'American', 'population', 'height', 'one', 'that ', 'African', 'on', 'did', 'who', 'true', ')', '100', '@@2@@', 'false', 'and', 'was', '(', 'be', 'who ', 'a ', 'for', 'the', 'number of ', '@@16@@', 'if ', 'where', '@@18@@', 'how', 'People', 'activist', 'larger than', 'is ', 'from ', 'a', 'for each', 'less', 'are ', '@@19@@', '@@4@@', 'executives', 'distinct ', '@@11@@', ',   ', 'to', 'not ', 'right', 'objects', 'names', 'rights', 'with ', ', ', 'lowest', 'in', 'has ', 'zero', 'in ', 'the    ', 'there ', 'lower than', 'highest', 'executive', 'lawyers', 'diplomats', 'lawyer', '@@9@@', 'than', 'civil', 'size', 'multiplication', 'with', 'besides ', ',', 'Advancement', '@@1@@', 'National', 'what', 'Association', 'authors', 'have', 'husbands', 'those ', 'of', '@@3@@', 'Nail', 'that', 'there', '@@10@@', '@@5@@', 'both ', '@@15@@', 'NAACP', 'number of', 'price', 'activists', 'any', 'American ', 'which', 'to ', 'diplomat', 'how ', 'when ', 'of ', 'division', 'Colored', 'is', 'sum', 'or', 'if', 'more', '@@12@@', 'smaller than', 'Grace', 'flights', '@@7@@', '@@17@@', 'for each ', 'What', 'from', '@@13@@', 'has', 'difference', 'when', 'are', 'any ', '@@8@@', 'first', 'both', 'the ', ',  ', 'besides', 'have ', 'where ', 'not']