*SUPPORT*
IN: wif dax tufa blicket OUT: GREEN YELLOW YELLOW
IN: blicket wif fep dax tufa gazzer tufa wif OUT: YELLOW PURPLE GREEN YELLOW RED RED
IN: wif tufa gazzer tufa fep OUT: RED PURPLE YELLOW
IN: wif dax lug blicket OUT: YELLOW YELLOW YELLOW YELLOW GREEN
IN: fep OUT: RED
IN: fep dax OUT: RED RED
IN: gazzer dax tufa fep OUT: RED PURPLE PURPLE
IN: wif dax OUT: YELLOW YELLOW
IN: blicket tufa wif tufa fep OUT: RED YELLOW GREEN
IN: blicket OUT: GREEN
IN: wif blicket dax OUT: YELLOW GREEN GREEN
IN: gazzer dax OUT: PURPLE PURPLE
IN: gazzer gazzer dax OUT: PURPLE PURPLE PURPLE
IN: blicket blicket OUT: GREEN GREEN

*QUERY*
IN: blicket dax lug gazzer tufa blicket OUT: GREEN GREEN GREEN GREEN GREEN PURPLE
IN: wif tufa blicket OUT: GREEN YELLOW
IN: wif dax tufa fep OUT: RED YELLOW YELLOW
IN: blicket tufa gazzer OUT: PURPLE GREEN
IN: wif wif tufa gazzer tufa wif OUT: YELLOW PURPLE YELLOW YELLOW
IN: wif tufa wif OUT: YELLOW YELLOW
IN: fep blicket dax OUT: RED GREEN GREEN
IN: blicket dax lug gazzer dax OUT: GREEN GREEN GREEN GREEN PURPLE PURPLE
IN: gazzer fep dax OUT: PURPLE RED RED
IN: wif OUT: YELLOW

*GRAMMAR*
wif -> YELLOW 
 fep -> RED 
 blicket -> GREEN 
 gazzer -> PURPLE 
 u1 dax -> [u1] [u1] 
 x1 tufa u1 -> [u1] [x1] 
 x1 lug x2 -> [x1] [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 