Mouth Open<br>At night time, my mouth was falling open frequently. I purchased a mouth guard in the hopes it would help. In the middle of the night, I awoke with pain in my jaw. I tried changing position several times, to no avail. I finally removed the guard and gave up.
The person had success using their mouth guard.
( z1 succeed :ARG0 ( z2 person ) :ARG1 ( z3 use :ARG0 z2 :ARG1 ( z4 guard :ARG0 z2 :ARG1 ( z5 mouth :part-of z2 ) ) ) )