Table Tennis rules continued

Table Tennis rules continued:
Definitions
1. A rally is the period during which the ball is in play.
2. The ball is in play from the last moment at which it is
stationary on the palm of the free hand before being
intentionally projected in service until the rally is decided
as a let or a point.
3. A let is a rally of which the result is not scored.
4. A point is a rally of which the result is scored.
5. The racket hand is the hand carrying the racket.
6. The free hand is the hand not carrying the racket.
7. A player strikes the ball if he touches it in play with his
racket, held in the hand, or with his racket hand below
the wrist.
8. A player obstructs the ball if he, or anything he wears or
carries, touches it in play when it is above or travelling
towards the playing surface and has not passed beyond
the end line, not having touched his court since last being
struck by his opponent.
9. The server is the player due to strike the ball first in a
rally.
10. The receiver is the player due to strike the ball second in
a rally.
11. The umpire is the person appointed to control a match.
12. The assistant umpire is the person appointed to assist
the umpire with certain decisions.
13. Anything that a player wears or carries includes anything
that he was wearing or carrying, other than the ball, at the
start of the rally.
14. The ball shall be regarded as passing over or around the
net assembly if it passes anywhere other than between
the net and the net post or between the net and the
playing surface.
15. The end line shall be regarded as extending indefinitely in
both directions.
Good serve
1. At the start of service the ball shall be stationary, resting
freely on the flat, open palm of the server's free hand,
behind the end line and above the level of the playing
surface.
2. The server shall then project the ball near vertically
upwards, without imparting spin, so that it rises at least
16 cm. or a little over 6 in. after leaving the palm of the
free hand and then falls without touching anything
before being struck.
3. As the ball is falling the server shall strike it so that it
touches first his court and then, after passing over or
around the net assembly, touches directly the receiver's
court; in doubles, the ball shall touch successively the
right half court of server and receiver.
4. The ball and the racket shall be above the level of the
playing surface from the last moment at which the ball is
stationary before being projected until it is struck.
5. When the ball is struck it shall be behind the server's end
line but not farther back than the part of the server's body,
other than his arm, head or leg, which is farthest for the
end line.
6. It is the responsibility of the player to serve so that the
umpire or the assistant umpire is sure that he complies
with the requirements for a good service.
7. if the umpire is doubtful of the legality of a service but
neither he nor the assistant umpire can see that it is
illegal he may, on the first occasion in a match, warn
the server without awarding a point.
8. If subsequently in the match a service by that player or
his doubles partner is of dubious legality, for the same or
any other reason, the receiver shall score a point.
9. Whenever there is a clear failure to comply with the
requirements for a good service no warning shall be
given and the receiver shall score a point, on the first
as on any other occasion.
10. Exceptionally, the umpire may relax the requirements
for a good service where he is notified, before play begins,
that compliance is prevented by physical disability.
Good return
1. The ball, having been served or returned, shall be struck
so that it passes over or around the net assembly and
touches the opponent's court, either directly or after
touching the net assembly.