not a valid subject

SQL1 is SELECT id, name, alpha, bold, bodytext, active, meta, intro, plural FROM subjects WHERE name='Tax Pledge' OR plural='Tax Pledge' ORDER BY alpha DESC LIMIT 1
SQL2 is
SQL3 is SELECT image_id from image_data where property_type='strip' AND image_id IN (90671, 90670, 90539, 90529, 90513, 90506, 87039, 80065, 73479, 73476, 73408, 73405, 65891, 63781, 52547, 26453, 11405, 6550) LIMIT 1

Array ( [error] => [warning] => [status] => 0 [fields] => Array ( [0] => keywords [1] => participants [2] => setting [3] => caption ) [attrs] => Array ( [published] => 2 [viewable] => 2 [property] => 1 ) [matches] => Array ( [90671] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 163 ) ) [90670] => Array ( [weight] => 1 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 71 ) ) [90539] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 75 ) ) [90529] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 156 ) ) [90513] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 71 ) ) [90506] => Array ( [weight] => 1 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 55 ) ) [87039] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 71 ) ) [80065] => Array ( [weight] => 1 [attrs] => Array ( [published] => 2012 [viewable] => 2012 [property] => 71 ) ) [73479] => Array ( [weight] => 1 [attrs] => Array ( [published] => 2011 [viewable] => 2016 [property] => 58 ) ) [73476] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2011 [viewable] => 2011 [property] => 75 ) ) [73408] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2011 [viewable] => 2011 [property] => 156 ) ) [73405] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2011 [viewable] => 2011 [property] => 71 ) ) [65891] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2011 [viewable] => 2011 [property] => 55 ) ) [63781] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2011 [viewable] => 2011 [property] => 156 ) ) [52547] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2010 [viewable] => 2010 [property] => 72 ) ) [26453] => Array ( [weight] => 1 [attrs] => Array ( [published] => 2001 [viewable] => 2008 [property] => 72 ) ) [11405] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2003 [viewable] => 2016 [property] => 72 ) ) [6550] => Array ( [weight] => 2 [attrs] => Array ( [published] => 2004 [viewable] => 2004 [property] => 71 ) ) ) [total] => 18 [total_found] => 18 [time] => 0.000 [words] => Array ( [tax] => Array ( [docs] => 2341 [hits] => 4685 ) [pledge] => Array ( [docs] => 156 [hits] => 285 ) ) )

90671, 90670, 90539, 90529, 90513, 90506, 87039, 80065, 73479, 73476, 73408, 73405, 65891, 63781, 52547, 26453, 11405, 6550