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

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

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