*SUPPORT*
IN: fep zup dax OUT: RED YELLOW
IN: lug tufa lug zup wif OUT: GREEN GREEN GREEN BLUE
IN: fep fep tufa dax tufa wif wif OUT: RED BLUE BLUE YELLOW YELLOW RED RED
IN: fep wif fep tufa dax wif OUT: RED BLUE YELLOW BLUE RED RED
IN: dax tufa lug tufa lug OUT: GREEN GREEN GREEN YELLOW YELLOW
IN: wif tufa fep zup dax OUT: RED BLUE BLUE YELLOW
IN: lug wif zup dax OUT: GREEN BLUE YELLOW
IN: dax kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: lug kiki OUT: GREEN GREEN GREEN GREEN
IN: wif tufa dax fep zup dax zup fep OUT: YELLOW RED BLUE BLUE YELLOW RED
IN: wif OUT: BLUE
IN: lug OUT: GREEN
IN: dax tufa wif tufa dax OUT: YELLOW BLUE BLUE YELLOW YELLOW
IN: wif zup dax OUT: BLUE YELLOW

*QUERY*
IN: lug lug OUT: GREEN GREEN
IN: fep OUT: RED
IN: fep lug kiki OUT: RED GREEN RED GREEN RED GREEN RED GREEN
IN: wif tufa lug OUT: GREEN BLUE BLUE
IN: dax dax lug zup fep OUT: YELLOW YELLOW GREEN RED
IN: lug tufa fep OUT: RED GREEN GREEN
IN: fep zup lug OUT: RED GREEN
IN: dax OUT: YELLOW
IN: dax zup wif zup dax OUT: YELLOW BLUE YELLOW
IN: dax dax OUT: YELLOW YELLOW

*GRAMMAR*
lug -> GREEN 
 dax -> YELLOW 
 fep -> RED 
 wif -> BLUE 
 x1 zup u1 -> [x1] [u1] 
 x1 kiki -> [x1] [x1] [x1] [x1] 
 u1 tufa x1 -> [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 