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

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

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