The skateboarder is jumping his board in the air while another skateboarder watches.
A skateboarder is jumping.
Based on the sentence "The skateboarder is jumping his board in the air while another skateboarder watches.", is the sentence "A skateboarder is jumping." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
yes
Based on the sentence "The skateboarder is jumping his board in the air while another skateboarder watches.", is the sentence "A skateboarder is jumping." a true sentence?

Options: 

 - yes

 - it is not possible to tell

 - no
user
yes
assistant