{% extends 'base.html' %} {% block title %}annotation{%endblock%} {% block title_num %}
Although weight is related to mass , it is not the same thing . Weight refers to the force that gravity exerts on an object . This force is directly proportional to the mass of the object . The weight of an object changes as the force of gravity changes , but its mass does not . An astronaut 's mass does not change just because she goes to the moon .
Please check all the words that can be used instead of the target word in the same context. Note that the morphology of the target (third person singular, past tense etc.) is considered to be applied to the candidate automatically in the process of paraphrasing.