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

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

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