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

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

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