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

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

*GRAMMAR*
lug -> GREEN 
 zup -> YELLOW 
 fep -> RED 
 wif -> BLUE 
 u1 dax -> [u1] [u1] 
 u1 kiki u2 -> [u1] [u2] [u2] 
 u1 tufa x1 -> [x1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 