Remind me to submit my thesis for my class at 4pm; alert me 2 hours beforehand.
[IN:CREATE_REMINDER Remind [SL:PERSON_REMINDED me ] to [SL:TODO [IN:GET_TODO [SL:TODO submit my thesis for my class ] [SL:DATE_TIME at 4 pm ] ] ] ; alert me [SL:DATE_TIME 2 hours beforehand ] . ]