Problem: S1: In 1942 , Breton collaborated with artist Wifredo Lam on the publication of Breton 's poem '' Fata Morgana '' , which was illustrated by Lam .
S2: In 1942 , Breton collaborated with the artist Lam on the publication of Breton 's poem '' Fata Morgana '' , illustrated by Wifredo Lam .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: yes

Problem: S1: It starts close to the western extremities of the Central Oregon Coast Range and generally flows west to the ocean south of Depot Bay and north of Otter Rock .
S2: It begins near the western extremities of the Central Oregon Coast Range and flows south to the ocean in general to the west of Depot Bay and north of Otter Rock .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A: no

Problem: S1: Szabo 's method of double protection was , however , vulnerable to Sybil attacks .
S2: Szabo 's method of sybilizing protection , however , was vulnerable to double attacks .

Do S1 & S2 convey the same information?

OPTIONS:
- no
- yes

A:
no