*SUPPORT*
IN: wif tufa blicket zup wif OUT: GREEN GREEN BLUE PURPLE
IN: fep dax zup blicket OUT: PURPLE RED RED
IN: tufa OUT: BLUE
IN: fep OUT: RED
IN: fep dax OUT: RED RED
IN: fep wif zup fep lug OUT: RED RED RED RED GREEN
IN: blicket OUT: PURPLE
IN: fep wif zup fep OUT: RED RED GREEN
IN: tufa lug OUT: BLUE BLUE BLUE
IN: wif dax OUT: GREEN GREEN
IN: fep blicket OUT: RED PURPLE
IN: wif OUT: GREEN
IN: tufa tufa fep zup fep OUT: RED BLUE BLUE RED
IN: fep tufa lug zup fep OUT: RED RED BLUE BLUE BLUE

*QUERY*
IN: fep fep tufa wif fep fep OUT: RED RED BLUE GREEN RED RED
IN: wif fep lug zup fep dax OUT: RED RED GREEN RED RED RED
IN: tufa fep OUT: BLUE RED
IN: wif fep OUT: GREEN RED
IN: wif lug zup tufa lug OUT: BLUE BLUE BLUE GREEN GREEN GREEN
IN: fep lug OUT: RED RED RED
IN: wif lug OUT: GREEN GREEN GREEN
IN: tufa dax zup wif zup wif OUT: GREEN GREEN BLUE BLUE
IN: wif tufa lug zup wif lug zup blicket OUT: PURPLE GREEN GREEN GREEN GREEN BLUE BLUE BLUE
IN: wif wif lug OUT: GREEN GREEN GREEN GREEN

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