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

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

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