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

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

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