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

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

*GRAMMAR*
gazzer -> RED 
 fep -> GREEN 
 lug -> PINK 
 dax -> YELLOW 
 x1 tufa u1 -> [u1] [x1] 
 u1 wif u2 -> [u2] [u1] [u2] [u2] 
 x1 zup x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 