VIEW     1 rows = a:V
    0: subview 'a'
   VIEW     2 rows = p1:I p2:V
      0: 123
      0: subview 'p2'
     VIEW     1 rows = p3:I
        0: 234
      1: 125
      1: subview 'p2'
     VIEW     3 rows = p3:I
        0: 456
        1: 457
        2: 458