Given the sentence "A large orange dog runs through the grass by the water where a large boat is sailing in the background." is it true that "A dog is running by a lake with a sailboat in the background."?
Step-by-step reasoning:
it is not possible to tell
Not all bodies of water are lakes.

Not all large boats are sailboats; just because it is a large boat does not mean it is a sailboat.

.

Final answer: it is not possible to tell