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

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

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