Premise:
"sitting outside restaurants, begging for scraps."
Hypothesis: Sitting inside the restaurant asking for money.

no

Premise:
"Today's Wall Street Journal says that Merck's Propecia is effective in restoring hair in some people, a U.S."
Hypothesis: In today's Wall Street Journal is said that Merk's Propecia is effective in restoring hair in some cases.

yes

Premise:
"The person who actually does quit to spend more time with the family may discover that paid work is almost always more rewarding than the tedious work of child rearing."
Hypothesis: Working for money keeps people motivated and happy.
it is not possible to tell