The cylinder's pattern could be described as red chevron.
The cylinder is part of a piping system.
You can not infer it's part of the piping system.
exists e1 p1 x1 x2.(n_pattern(x2) & of(x2,x1) & n_cylinder(x1) & exists e2 s1 x3.(as(e2,x3) & n_chevron(x3) & a_red(s1) & Theme(s1,x3) & Theme(e2,x2) & v_describe(e2)) & Topic(e1,p1) & Actor(e1,x2) & v_could(e1))
exists p1 x1.(n_cylinder(x1) & exists x2 x3 x4.((x1 = x2) & of(x2,x3) & n_system(x3) & of(x3,x4) & n_piping(x4) & n_part(x2)))