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

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

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