There is a flea market with many shoppers during late fall or winter.
A holiday flea market open for the Christmas season.
Just because the flea market has many shoppers during late fall or winter does not mean that they are only open for Christmas season.
exists p1 s1 x1 x2.(during(p1,x2) & (n_fall(x2) | n_winter(x2)) & a_late(s1) & Theme(s1,x2) & exists x3 x4 x5.((x1 = x3) & with(x3,x5) & n_shopper(x5) & n_quantity(x5) & n_market(x3) & of(x3,x4) & n_flea(x4)))
exists x1 x2 x3 x4 x5 x6.(n_season(x5) & (x5 = x6) & ne_tim_christmas(x6) & a_topic(x1) & for(x1,x5) & n_open(x1) & of(x1,x4) & n_market(x4) & of(x1,x3) & n_flea(x3) & of(x1,x2) & n_holiday(x2))