*SUPPORT*
IN: tufa lug tufa OUT: PINK PINK
IN: wif tufa lug wif OUT: BLUE PINK BLUE
IN: tufa tufa lug wif OUT: PINK PINK BLUE
IN: tufa OUT: PINK
IN: wif dax gazzer OUT: YELLOW BLUE YELLOW
IN: kiki lug kiki OUT: GREEN GREEN
IN: wif dax kiki OUT: GREEN BLUE GREEN
IN: gazzer lug gazzer OUT: YELLOW YELLOW
IN: tufa lug gazzer OUT: PINK YELLOW
IN: kiki zup kiki OUT: GREEN GREEN GREEN
IN: tufa dax tufa OUT: PINK PINK PINK
IN: tufa zup gazzer OUT: PINK YELLOW YELLOW
IN: gazzer OUT: YELLOW
IN: gazzer dax kiki OUT: GREEN YELLOW GREEN

*QUERY*
IN: wif tufa wif gazzer dax gazzer OUT: BLUE PINK BLUE YELLOW YELLOW YELLOW
IN: wif gazzer tufa OUT: BLUE YELLOW PINK
IN: tufa lug kiki OUT: PINK GREEN
IN: wif dax tufa OUT: PINK BLUE PINK
IN: kiki zup tufa OUT: GREEN PINK PINK
IN: tufa gazzer lug wif OUT: PINK YELLOW BLUE
IN: tufa dax kiki OUT: GREEN PINK GREEN
IN: wif OUT: BLUE
IN: kiki OUT: GREEN
IN: gazzer wif lug kiki OUT: YELLOW BLUE GREEN

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