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

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

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