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

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

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