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

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

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