You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").

Ex Input:
Paragraph- Sent 1: New Horizons: Exhausted after the Civil War, Spain remained on the sidelines during World War II and began to recover economically under the oppressive, law-and-order regime of Franco.
Sent 2: There had been a foretaste of elite foreign tourism in the 1920s, but it was the late 1950s when the rest of Europe began sun-seeking pilgrimages to Spain.
Sent 3: Tourism exploded into an annual southern migration, transforming the Spanish economy, landscape, and society.
Sent 4: Eager to capitalize, the country poured its soul into mass tourism, which triggered a rash of indiscriminate building on the southern and eastern coastlines, with scant regard for tradition or aesthetics.
Sent 5: But after so many years closed off from the rest of Europe, of equal significance was the injection of foreign influences into Franco's once hermetically sealed Spain.
Sent 6: Mallorca and Menorca in particular saw explosive growth in tourism; by the 1970s, the Balearics were one of Europe's most popular holiday destinations.
Sent 7: Franco named as his successor the grandson of Alfonso XIII, who was enthroned as King Juan Carlos I when the dictator died in 1975.
Sent 8: To the dismay of Franco diehards, the king brilliantly managed the transition to democracy, then stood back to allow it full rein, even intervening during a brief attempt at a military coup.
Sent 9: After many years of repression, new freedoms and autonomy were granted to Spanish regions, including the Balearics, and their languages and cultures enjoyed a long-desired renaissance.
Sent 10: More a part of Europe than ever before, Spain joined the European Community (now European Union) in 1986, giving further boost to a booming economy.
Sent 11: The tourist industry continued to expand, and though it became one of the top two income earners in Spain, a realization that unrestricted mass tourism was leading to damaging long-term consequences also began to grow.
Sent 12: By the late 1990s, a new emphasis on quality and, especially in the Balearics, on safeguarding the environment had finally taken roottoo late for many environmentalists, but hopefully still in time to preserve much of the natural beauty and unique character of the Las Islas Baleares.
Question: Why was Spain so isolated and what event happened that allowed Mallorca and Menorca to see explosions in tourism?.

Ex Output:
4, 5.

Ex Input:
Paragraph- Sent 1: Into the 21st Century: As 1997 drew nearer, it became clear that the Chinese government had no intention of renewing the 99-year lease on the New Territories.
Sent 2: Negotiations began, and in 1984 Prime Minister Margaret Thatcher signed the Sino-British Joint Declaration, in which Britain confirmed the transfer of the New Territories and all of Hong Kong to China in 1997.
Sent 3: For its part, China declared Hong Kong a "Special Administrative Region" and guaranteed its civil and social system for at least 50 years after 1997.
Sent 4: Although China's Basic Law promised that Hong Kong's existing laws and civil liberties would be upheld, refugees began flowing the other way.
Sent 5: The British Nationality Act (1981) had in effect prevented Hong Kong citizens from acquiring British citizenship, and thousands of people, anxious about their future under China's rule, were prompted to apply for citizenship elsewhere, notably in Canada and Australia.
Sent 6: The protests in 1989 in Beijing's Tiananmen Square sparked sympathy marches in Hong Kong, and further increased tension with China.
Sent 7: Some companies moved their headquarters out of Hong Kong.
Sent 8: Ironically, as the handover approached, the British granted the Hong Kong Chinese more political autonomy than they had done since the colony was founded, including such democratic reforms as elections to the Legislative Council.
Sent 9: Since the handover in July 1997, China has generally followed a hands-off policy.
Sent 10: Many who fled have returned.
Sent 11: What controls heartbeats in Hong Kong are the fluctuations of the Hang Seng Index, foreign currency exchange rates, and skyrocketing property prices.
Sent 12: In short, the status quo prevails.
Sent 13: Everybody hopes Hong Kong will remain stable, but everyone also has their doubts.
Sent 14: In the meantime, the philosophy is to seize present-day opportunities in the thriving economy.
Question: what two countries were involved in the Sino-British Joint Declaration in 1997?.

Ex Output:
1, 2.

Ex Input:
Paragraph- Sent 1: The first rule is parental.
Sent 2: The primitive monarchy is in the home.
Sent 3: A young baby cries.
Sent 4: The trained nurse turns on the light, lifts the baby, hushes it, sings to it, rocks it, and stills its weeping by caresses and song.
Sent 5: When next the baby is put down to sleep, more cries, more soothing and disturbance, and the setting of a tiny instinct which shall some day be will--the power of control.
Sent 6: The grandmother arrives on the scene.
Sent 7: When baby cries, she plants the little one firmly in its crib, turns down the light, pats and soothes the tiny restless hands that fight the air, watches, waits.
Sent 8: From the crib come whimpers, angry cries, yells, sobs, baby snarls and sniffles that die away in a sleepy infant growl.
Sent 9: Silence, sleep, repose, and the building of life and nerve and muscle in the quiet and the darkness.
Sent 10: The baby has been put in harmony with the laws of nature--the invigoration of fresh air, sleep, stillness--and the little one wakens and grows like a fresh, sweet rose.
Sent 11: The mother, looking on, learns of the ways of God with men.
Question: Who is the mother watching?.

Ex Output:
4.