Question: Extract the answer to the question from the following context. Question: Branta canadensis is also known as what? Context: It has been possible to teach a migration route to a flock of birds, for example in re-introduction schemes. After a trial with Canada geese Branta canadensis, microlight aircraft were used in the US to teach safe migration routes to reintroduced whooping cranes Grus americana.
Answer: Canada geese

Question: Extract the answer to the question from the following context. Question: What happens to metal? Context: The Faraday constant F is the charge of one mole of electrons, equal to the Avogadro constant NA multiplied by the elementary charge e. It can be determined by careful electrolysis experiments, measuring the amount of silver dissolved from an electrode in a given time and for a given electric current. In practice, it is measured in conventional electrical units, and so given the symbol F90. Substituting the definitions of NA and e, and converting from conventional electrical units to SI units, gives the relation to the Planck constant.
Answer: dissolved

Question: Extract the answer to the question from the following context. Question: What happens once the pope announces the appointment? Context: If conditions change, so that the pope judges it safe to make the appointment public, he may do so at any time. The cardinal in question then ranks in precedence with those raised to the cardinalate at the time of his in pectore appointment. If a pope dies before revealing the identity of an in pectore cardinal, the cardinalate expires.
Answer:
The cardinal in question then ranks in precedence with those raised to the cardinalate at the time of his in pectore appointment