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

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

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