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

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

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