I like to collect stamps from different countries as a hobby.

Paul's arrival in Hollywood coincided with an increase in public awareness that all wasn't perfect in screenland. In Hollywood, most early-1920s problems were drug-related.

However, he was really pointing out that there was no evidence of the yawl rig having been used by the pilots, and went on to deal with the 'yawlers' without apparently realizing that they had a special type of craft.

Imperative and propositive (ie, 'let us V type) sentences were excluded.