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

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

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