Perseverance has to do this all on her own, Chen said. For more information you can review our Terms of Service and Cookie Policy. Please make sure your browser supports JavaScript and cookies and that you are not blocking them from loading. The Perseverance rover can hold on to them, carrying the precious materials within itself as it roams across Marss landscape. Why did this happen?
Perseverance contains an a priori and a rulebook.
( z0 contain :ARG0 ( z1 persevere ) :ARG1 ( z2 and :op ( z3 a-priori ) :op ( z4 rulebook ) ) )
(z0 / contain-01
    :ARG0 (z1 / persevere-01)
    :ARG1 (z2 / and
              :op1 (z3 / a-priori)
              :op2 (z4 / rulebook)))
Perseverance contains an a priori and a rulebook .
z0 :ARG0 z1
z2 :op1 z3
z0 :ARG1 z2
z2 :op2 z4