My sister is coming by bus, I need to pick her up today in  8 hours, set a reminder two hour early.
[IN:CREATE_REMINDER My sister is coming by bus , [SL:PERSON_REMINDED I ] need to [SL:TODO [IN:GET_TODO [SL:TODO pick her up ] [SL:DATE_TIME today in 8 hours ] ] ] , set a reminder [SL:DATE_TIME two hour early ] . ]