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

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

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