[Q]: Sentence: At the time structures such as Lie algebras and hyperbolic quaternions drew attention to the need to expand algebraic structures beyond the associatively multiplicative class. Question: What did Lie algebras and hyperbolic quaternions demonstrate a need for? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: Tito's estrangement from the USSR enabled Yugoslavia to obtain US aid via the Economic Cooperation Administration (ECA), the same US aid institution which administered the Marshall Plan. Question: What agency distributed aid to Yugoslavia? OPTIONS:
- yes
- no
++++++++++
[A]: yes

[Q]: Sentence: Most major airports provide commercial outlets for products and services. Question: Most major airports provide commercial outlets for what? OPTIONS:
- yes
- no
++++++++++
[A]:
yes