A study published by the Cambridge University Press found that symptoms of cognitive decline such as trouble formulating words were often associated with bad days and could lead to lower functioning. Its not that complicated. @edokeefe reports the Biden move to lay low may seem odd or misguided, but his team disagrees. And journalists are too scared to ask why. Instead...nothing.
the press is not certain what the study arms are for.
( z0 know :ARG0 ( z1 press ) :ARG1 ( z2 thing :purpose-of ( z3 arm :purpose ( z4 study ) ) ) :polarity - )
(z0 / know-01
    :ARG0 (z1 / press)
    :ARG1 (z2 / thing
              :purpose-of (z3 / arm
                              :purpose (z4 / study-01)))
    :polarity -)
the press is not certain what the study arms are for .
z0 :polarity 0
z0 :ARG0 z1
z0 :ARG1 z2
z3 :purpose z4
z2 :purpose-of z3