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

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

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