tigers/cats/safer/than/are
cats are safer than tigers
faster/cows/are/horses/than
horses are faster than cows
dogs/pigs/are/dirtier/than
pigs are dirtier than dogs
fatter/he/than/her/is
he is fatter than her
smaller/fish/whales/than/are
fish are smaller than whales
stronger/gorillas/are/than/monkeys
gorillas are stronger than monkeys
her/he/is/sadder/than
he is sadder than her
more/she/than/him/is/beautiful
she is more beautiful than him
birds/are/more/colorful/than/parrots
parrots are more colorful than birds
sharks/dolphins/dangerous/than/more
sharks are more dangerous than dolphins
bigger/elephants/are/mouse/than/an/a
an elephant is bigger than a mouse
rabbits/turtles/are/than/slower
turtles are slower than rabbits
shorter/giraffes/are/than/goats
goats are shorter than giraffes
is/swan/more/duck/a/beautiful/a
a swan is more beautiful than a dog
rabbits/uglier/than/are/rats
rats are uglier than rabbits