The height of the three animals is compared. The height of the puppy is 0.7 meters, the height of the sika deer is twice that of the puppy, and the height of the giraffe is 3.5 times that of the sika deer. How many meters is the height of the sika deer?
三种动物比身高，小狗的身高是有0.7米，梅花鹿的身高是小狗的2倍，而长颈鹿的身高是梅花鹿的3.5倍，请问梅花鹿的身高是多少米？
<gadget id="calculator">0.7 * 2</gadget>
<output>1.4</output>

<result>1.4</result>