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

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

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