Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[EX Q]: Context: Coming off their divisional home win over the Cardinals, the 49ers flew to the Edward Jones Dome for a Week 2 divisional duel against their NFC West rival, the St. Louis Rams. In the first quarter, the Niners trailed early as Rams QB Marc Bulger completed a 12-yard TD pass to WR Torry Holt for the only score of the period. In the second quarter, San Francisco would tie the game up with RB Frank Gore getting a 1-yard TD run. St. Louis would take the halftime lead with kicker Jeff Wilkins getting a 29-yard field goal In the third quarter, the 49ers took the lead with Gore breaking through a gang of tacklers for a 43-yard TD run, along with the only score of the period. In the fourth quarter, the Rams retook the lead with Wiklins getting a 53-yard field goal. Fortunately, thanks to a St. Louis goof-up on special teams, the Niners took the lead with kicker Joe Nedney getting a 40-yard field goal. Near the end the game, the Rams had one last chance to win the game. Fortunately for San Francisco, Wilkins' 56-yard field goal attempt fell about a yard short of the crossbar. With the win, the 49ers improved to 2-0 for the first time since 1998. Q1 - STL - 6:04 - 12-yard TD pass from Marc Bulger to Torry Holt (Wilkins kick) (STL 7-0) Q2 - SF - 14:57 - Frank Gore 1-yard TD run (Nedney kick) (7-7) Q2 - STL - 9:04 - Jeff Wilkins 27-yard FG (STL 10-7) Q2 - STL - 1:51 - Jeff Wilkins 29-yard FG (STL 13-7) Q3 - SF - 2:43 - Frank Gore 43-yard TD run (Nedney kick) (SF 14-13) Q4 - STL - 10:04 - Jeff Wilkins 53-yard FG (STL 16-14) Q4 - SF - 3:23 - Joe Nedney 40-yard FG (SF 17-16) 
 Question: How did the 49ers take the lead in the fourth quarter?
[EX A]: joe nedney

[EX Q]: Context: When the Federal German Navy was established in 1956, Dochet and Flint were acquired and classified as Type 139 patrol trawlers. 
 Question: What year was Type 139 patrol trawler made?
[EX A]: 1956

[EX Q]: Context: Flatworms are invertebrates that belong to Phylum Platyhelminthes. There are more than 25,000 species in the flatworm phylum. Not all flatworms are as long as tapeworms. Some are only about a millimeter in length. Flatworms have a flat body because they lack a fluid-filled body cavity. They also have an incomplete digestive system with a single opening. However, flatworms represent several evolutionary advances in invertebrates. They have the following adaptations: Flatworms have three embryonic cell layers. They have a mesoderm layer in addition to ectoderm and endoderm layers. The mesoderm layer allows flatworms to develop muscle tissues so they can move easily over solid surfaces. Flatworms have a concentration of nerve tissue in the head end. This was a major step in the evolution of a brain. It was also needed for bilateral symmetry. Flatworms have bilateral symmetry. This gives them a better sense of direction than radial symmetry would. Watch this amazing flatworm video to learn about some of the other firsts these simple animals achieved, including being the first hunters: [Link] MEDIA Click image to the left or use the URL below. URL: Flatworms reproduce sexually. In most species, the same individuals produce both eggs and sperm. After fertilization occurs, the fertilized eggs pass out of the adults body and hatch into larvae. There may be several different larval stages. The final larval stage develops into the adult form. Then the life cycle repeats. Some flatworms live in water or moist soil. They eat invertebrates and decaying animals. Other flatworms, such as tapeworms, are parasites that live inside vertebrate hosts. Usually, more than one type of host is needed to complete the parasites life cycle, as shown in Figure 12.12. Roundworms are invertebrates in Phylum Nematoda. This is a very diverse phylum. It has more than 80,000 known species. Roundworms range in length from less than 1 millimeter to over 7 meters in length. You can see an example of a roundworm in Figure 12.13. Roundworms have a round body because they have a partial fluid-filled body cavity (pseudocoelom). This is one way that roundworms differ from flatworms. Another way is their complete digestive system. It allows them to eat, digest food, and eliminate wastes all at the same time. Roundworms have a tough covering of cuticle on the surface of their body. It prevents their body from expanding. This allows the buildup of fluid pressure in their partial body cavity. The fluid pressure adds stiffness to the body. This provides a counterforce for the contraction of muscles, allowing roundworms to move easily over surfaces. Roundworms reproduce sexually. Sperm and eggs are produced by separate male and female adults. Fertilization takes place inside the female organism. Females lay huge numbers of eggs, sometimes as many as 100,000 per day! The eggs hatch into larvae, which develop into adults. Then the life cycle repeats. Roundworms may be free-living or parasitic organisms. Free-living worms are found mainly in freshwater habitats. Some live in moist soil. They generally feed on bacteria, fungi, protozoa, or decaying organic matter. By breaking down organic matter, they play an important role in the carbon cycle. Parasitic roundworms may have plant, invertebrate, or vertebrate hosts. Several roundworm species infect humans. Besides ascaris, they include hookworms. Hookworms are named for the hooks they use to grab onto the hosts intestines. You can see the hooks in Figure 12.14. Hookworm larvae enter the host through the skin. They migrate to the intestine, where they mature into adults. Female adults lay large quantities of eggs. Eggs pass out of the host in feces. Eggs hatch into larvae in the feces or soil. Then the cycle repeats. You can learn more about parasitic roundworms in humans by watching this short video: . MEDIA Click image to the left or use the URL below. URL: 
 Question: Which statement about roundworm reproduction is true?
[EX A]:
eggs hatch into larvae, which develop into adults