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

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

*GRAMMAR*
wif -> PURPLE 
 kiki -> PINK 
 dax -> GREEN 
 tufa -> YELLOW 
 x1 gazzer u1 -> [u1] [x1] [u1] 
 x1 lug x2 -> [x1] [x2] 
 x1 fep u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 