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

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

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