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

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

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