Premise: "Girl with half dreadlocks and earmuffs on makes a large bubble."\nHypothesis: "The bubble is 20 ft tall."\nDo we know that the hypothesis entailed by the premise?
Let's think step by step.
it is not possible to tell
The fact that the bubble is large doesn't necessarily imply that it is 20 ft tall.

.

Final answer: it is not possible to tell