The category "<point_type>" can be expressed as follows:
<flight_noun-sing> <point_type-not_ranked>
<flight_noun-sing> <point_type-not_ranked-sing>
agate
agates
base of fire
base of fires
bauxite
bauxites
bongo
bongoes
bronze
bronzes
bullseye
bullseyes
cap
cap station
cap stations
caps
checkpoint
checkpoints
clz
clzs
coordination point
coordination points
craft landing zone
craft landing zones
dca station
dca stations
debark point
debark points
embark point
embark points
emerald
emeralds
entry point
entry points
ep
eps
exit point
exit points
fez
fezes
gold
golds
holding point
holding points
home base
home bases
initial point
initial points
ip
ips
jade
jades
joa
joas
landing zone
landing zones
lz
lzs
onyx
onyxes
opal
opals
platinum
platinums
point
points
puller
pullers
pusher
pushers
ram
rams
romeo
romeoes
sar
sars
sierra
sierras
silver
silvers
station
stations
sun
suns
tango
tangoes
topaz
topazes
uniform
uniforms
waypoint
waypoints
whiskey
whiskeys