Question:
Long enough.

Does it follow that "Sufficiently long."?
Answer:
yes

Question:
The wheels of the chariot themselves, symbols of the Hindu cycle of rebirth, have beautifully carved spokes and hubs decorated with kings and gods.

Does it follow that "The chariot wheels have spokes made of iron that was forged. "?
Answer:
no

Question:
Well, I said wearily, "I suppose some one must have stepped on it." 36 "Exactly," said Poirot, in an odd voice.

Does it follow that "It is possible someone stepped on it."?
Answer:
yes

Question:
You built a wall across a continent high and strong enough to change the air currents and affect all your weather--and that in the coldest, meanest country in your world.

Does it follow that "The wall you built was about as high as a single story-house, and stretched all around your landlocked country in the middle of the continent."?
Answer:
no