Frequency - Word Form
 4 observation
 2 observations
 1 observed
 1 obvious
43 of
 1 off
 1 often
 1 olympic
 4 on
 8 one
 2 only
 4 opinion
 1 opportunity
 1 opposite
11 or
 3 order
 2 other
 1 others
 1 our
 1 own