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

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

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