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

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

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