Happy couple riding bikes side by side with each other during a nice summer day.
There are people outside.
Riding bikes implies the people are outdoors.
exists s1 x1 x2 x3 x4 x5.(all x6.(n_other(x6) -> exists s2 x7 x8.(a_topic(x1) & by(x1,x5) & during(x5,x7) & n_day(x7) & of(x7,x8) & n_summer(x8) & a_nice(s2) & Theme(s2,x7) & with(x5,x6))) & n_side(x5) & n_side(x1) & of(x1,x4) & n_bike(x4) & of(x1,x3) & n_riding(x3) & of(x1,x2) & n_couple(x2) & a_happy(s1) & Theme(s1,x1))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_people(x2)))