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

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

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