*SUPPORT*
IN: wif fep OUT: YELLOW YELLOW
IN: gazzer fep OUT: RED RED
IN: gazzer lug OUT: RED RED
IN: wif OUT: YELLOW
IN: tufa fep zup wif OUT: YELLOW PURPLE PURPLE PURPLE PURPLE
IN: wif gazzer OUT: YELLOW RED
IN: wif zup tufa OUT: PURPLE YELLOW YELLOW
IN: dax dax wif fep OUT: GREEN GREEN YELLOW YELLOW
IN: gazzer lug zup tufa OUT: PURPLE RED RED RED RED
IN: dax lug OUT: GREEN GREEN
IN: tufa lug OUT: PURPLE PURPLE
IN: dax fep OUT: GREEN GREEN
IN: wif wif zup tufa OUT: PURPLE YELLOW YELLOW YELLOW YELLOW
IN: dax zup tufa zup wif OUT: YELLOW PURPLE GREEN GREEN PURPLE GREEN GREEN

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

*GRAMMAR*
tufa -> PURPLE 
 gazzer -> RED 
 wif -> YELLOW 
 dax -> GREEN 
 u1 lug -> [u1] [u1] 
 u1 fep -> [u1] [u1] 
 x1 zup u1 -> [u1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 