Can a and b be combined into c?
a. The crowd overflowed into the street.
b. The crowd overflowed the auditorium.
c. The crowd overflowed the auditorium into the street.
Can a and b be combined into c?
a. The crowd overflowed into the street.
b. The crowd overflowed the auditorium.
c. The crowd overflowed the auditorium into the street.
I think it would be clearer as "The crowd overflowed the auditorium, pouring into the street." Then it would be clear that the direct object in c., auditorium, is not itself being pushed into the street.